Periodic Trends - Chemwiki
... measurement of the energy change that occurs when an electron is added to a neutral gas atom. The more negative the electron affinity value, the higher an atom's affinity for electrons. Electron affinity generally decreases down a group of elements because each atom is larger than the atom above it ...
... measurement of the energy change that occurs when an electron is added to a neutral gas atom. The more negative the electron affinity value, the higher an atom's affinity for electrons. Electron affinity generally decreases down a group of elements because each atom is larger than the atom above it ...
Unit Description and Student Understandings
... Can students interpret models of atoms (Thomson’s Plum Pudding Model, Rutherford’s Model, Bohr Model, and Electron Cloud Model)? Can students list the major components of an atom and provide the charge for each? Can students recognize and explain patterns, simple periodic tendencies, and the relatio ...
... Can students interpret models of atoms (Thomson’s Plum Pudding Model, Rutherford’s Model, Bohr Model, and Electron Cloud Model)? Can students list the major components of an atom and provide the charge for each? Can students recognize and explain patterns, simple periodic tendencies, and the relatio ...
Slide 1
... radius increases as well. These trends hold for both positive and negative ions. Metals tend to lose one or more electrons and form a positive ion. As you move across a period, the ionic radii of metal cations tend to decrease because of the increasing nuclear charge. As you come to the nonmetal ele ...
... radius increases as well. These trends hold for both positive and negative ions. Metals tend to lose one or more electrons and form a positive ion. As you move across a period, the ionic radii of metal cations tend to decrease because of the increasing nuclear charge. As you come to the nonmetal ele ...
General and Inorganic Chemistry I.
... X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. Thus Moseley placed argon (Z=18) before potassium (Z=19) based on their X-ray wavelengths, despite the fact that argon has a greater atomic weight (39.9) than potassium (39.1) ...
... X-ray wavelength and its atomic number (Z), and therefore resequenced the table by nuclear charge rather than atomic weight. Thus Moseley placed argon (Z=18) before potassium (Z=19) based on their X-ray wavelengths, despite the fact that argon has a greater atomic weight (39.9) than potassium (39.1) ...
Student Exploration Sheet: Growing Plants
... 2. A neutral atom has the same number of electrons and protons. How many electrons are in a neutral lithium atom? _____________ 3. Select the ELECTRON CONFIGURATION tab. Click twice in the 1s box at upper left and once in the 2s box. Observe the atom model on the right. A. What do you see? _________ ...
... 2. A neutral atom has the same number of electrons and protons. How many electrons are in a neutral lithium atom? _____________ 3. Select the ELECTRON CONFIGURATION tab. Click twice in the 1s box at upper left and once in the 2s box. Observe the atom model on the right. A. What do you see? _________ ...
The Periodic Table
... similar chemical properties. One of Mendeleev’s insights is illustrated by the elements tellurium (Te) and iodine (I). Notice that tellurium is listed before iodine, even though its atomic mass is higher. Mendeleev reversed the order because he knew that the properties of iodine were much more simil ...
... similar chemical properties. One of Mendeleev’s insights is illustrated by the elements tellurium (Te) and iodine (I). Notice that tellurium is listed before iodine, even though its atomic mass is higher. Mendeleev reversed the order because he knew that the properties of iodine were much more simil ...
Section 4 bonding packet answers
... How to Configure Network (NIC) Bonding/Teaming on Debian Linux. by Rob Turner | Published: May 18, 2015 | Last Updated: May 18, 2015 Name _____Date _____ Period ____ Ionic Bonding Worksheet For each pair of elements below draw an atomic diagram showing. T. Trimpe 2010 http://sciencespot.net/ Bonding ...
... How to Configure Network (NIC) Bonding/Teaming on Debian Linux. by Rob Turner | Published: May 18, 2015 | Last Updated: May 18, 2015 Name _____Date _____ Period ____ Ionic Bonding Worksheet For each pair of elements below draw an atomic diagram showing. T. Trimpe 2010 http://sciencespot.net/ Bonding ...
Student Exploration: Electron Configuration
... Introduction: Electrons are arranged in orbitals, subshells, and shells. These levels of organization are shown by the boxes of the Gizmo. Each box represents an orbital. The subshells are labeled with letters (s, p, d, and f) and the shells are labeled with numbers. Question: How are electrons arra ...
... Introduction: Electrons are arranged in orbitals, subshells, and shells. These levels of organization are shown by the boxes of the Gizmo. Each box represents an orbital. The subshells are labeled with letters (s, p, d, and f) and the shells are labeled with numbers. Question: How are electrons arra ...
word - My eCoach
... a. mostly covalent in character and formed between a metal and a non-metal b. mostly covalent in character and formed between two non-metals c. mostly ionic in character and formed between a metal and a non-metal d. mostly ionic in character and formed between two non-metals ...
... a. mostly covalent in character and formed between a metal and a non-metal b. mostly covalent in character and formed between two non-metals c. mostly ionic in character and formed between a metal and a non-metal d. mostly ionic in character and formed between two non-metals ...
Compounds have different properties from the elements that make
... substances are compounds. A compound is a substance made of atoms of two or more different elements. Just as the 26 letters in the alphabet can form thousands of words, the elements in the periodic table can form millions of compounds. The atoms of different elements are held together in compounds b ...
... substances are compounds. A compound is a substance made of atoms of two or more different elements. Just as the 26 letters in the alphabet can form thousands of words, the elements in the periodic table can form millions of compounds. The atoms of different elements are held together in compounds b ...
Unit 1 Safety and Science
... and it will just be smaller bits of iron. Another such element is carbon. Elements can be combined to form compounds. If we combine iron and carbon we get the compound called steel. Now, if we cut down a piece of steel to the smallest possible piece that would still be called steel, we would call th ...
... and it will just be smaller bits of iron. Another such element is carbon. Elements can be combined to form compounds. If we combine iron and carbon we get the compound called steel. Now, if we cut down a piece of steel to the smallest possible piece that would still be called steel, we would call th ...
What Are Compounds?
... reflect the electron distribution of the compound. • In order to indicate the general distribution of electrons among the bonded atoms in a molecular compound or a polyatomic ion, oxidation numbers are assigned to the atoms composing the compound or ion. • Unlike ionic charges, oxidation numbers do ...
... reflect the electron distribution of the compound. • In order to indicate the general distribution of electrons among the bonded atoms in a molecular compound or a polyatomic ion, oxidation numbers are assigned to the atoms composing the compound or ion. • Unlike ionic charges, oxidation numbers do ...
Periodic Groups and Trends
... In group 7 the van der Waals’ attractive forces between the diatomic molecules increase down the group so the melting points increase. As the molecules get bigger there are obviously more electrons which can move around and set up the temporary dipoles which create these attractions. The stronger in ...
... In group 7 the van der Waals’ attractive forces between the diatomic molecules increase down the group so the melting points increase. As the molecules get bigger there are obviously more electrons which can move around and set up the temporary dipoles which create these attractions. The stronger in ...
File atoms1
... All of the above examples are considered matter because they have mass and take up space. Can you think of anything that would not be considered matter? ...
... All of the above examples are considered matter because they have mass and take up space. Can you think of anything that would not be considered matter? ...
C H A P T E R
... compounds are white solids that dissolve in water to form solutions that conduct electricity. Similarly, the elements fluorine, chlorine, bromine, and iodine can combine with sodium in a 1:1 ratio to form NaF, NaCl, NaBr, and NaI. These compounds are also white solids that can dissolve in water to f ...
... compounds are white solids that dissolve in water to form solutions that conduct electricity. Similarly, the elements fluorine, chlorine, bromine, and iodine can combine with sodium in a 1:1 ratio to form NaF, NaCl, NaBr, and NaI. These compounds are also white solids that can dissolve in water to f ...
Chapter 5 Section 2 Electron Configuration and the Periodic Table
... • A positive ion is known as a cation. • The formation of a cation by the loss of one or more electrons always leads to a decrease in atomic radius. • The electron cloud becomes smaller. • The remaining electrons are drawn closer to the nucleus by its ...
... • A positive ion is known as a cation. • The formation of a cation by the loss of one or more electrons always leads to a decrease in atomic radius. • The electron cloud becomes smaller. • The remaining electrons are drawn closer to the nucleus by its ...
Unit 04 Introduction to Atomic Theory
... You may be wondering why some of the atomic mass numbers in the periodic table are expressed in decimal notation, and not whole numbers. After all, an atom’s mass is the sum of its protons and neutrons, and it is impossible for an atom to have a fraction of a proton or a neutron. The reason why the ...
... You may be wondering why some of the atomic mass numbers in the periodic table are expressed in decimal notation, and not whole numbers. After all, an atom’s mass is the sum of its protons and neutrons, and it is impossible for an atom to have a fraction of a proton or a neutron. The reason why the ...
The Periodic Table
... In this table, atomic mass increases from top to bottom of vertical columns, with successive columns going left to right. As a result, elements that are in the same horizontal row are groups of elements that were known to exhibit similar chemical properties. One of Mendeleev’s insights is illustrate ...
... In this table, atomic mass increases from top to bottom of vertical columns, with successive columns going left to right. As a result, elements that are in the same horizontal row are groups of elements that were known to exhibit similar chemical properties. One of Mendeleev’s insights is illustrate ...
Chapter 6: The Periodic Table and Periodic Law
... often referred to as the main group, or representative elements because they possess a wide range of chemical and physical properties. The groups designated with a B (1B through 8B) are referred to as the transition elements. A more recent numbering system, which uses the numbers 1 through 18, also ...
... often referred to as the main group, or representative elements because they possess a wide range of chemical and physical properties. The groups designated with a B (1B through 8B) are referred to as the transition elements. A more recent numbering system, which uses the numbers 1 through 18, also ...
Chapter 6: The Periodic Table and Periodic Law
... Development of the Periodic Table In the late 1700s, French scientist Antoine Lavoisier (1743–1794) compiled a list of all elements that were known at the time. The list, shown in Table 6.1, contained 33 elements organized in four categories. Many of these elements, such as silver, gold, carbon, and ...
... Development of the Periodic Table In the late 1700s, French scientist Antoine Lavoisier (1743–1794) compiled a list of all elements that were known at the time. The list, shown in Table 6.1, contained 33 elements organized in four categories. Many of these elements, such as silver, gold, carbon, and ...
chapter 17 - keishabrady
... __Teaching Transparency 30A, Melting Points and Boiling Points of Period 6 Elements __Visual Strategy, Figure 12, TE Point out why there is no firm agreement on exact values for atomic radii. (GENERAL) __Using the Handbook, TE Summaries of group trends for groups 1 through 17 can be found in the Ele ...
... __Teaching Transparency 30A, Melting Points and Boiling Points of Period 6 Elements __Visual Strategy, Figure 12, TE Point out why there is no firm agreement on exact values for atomic radii. (GENERAL) __Using the Handbook, TE Summaries of group trends for groups 1 through 17 can be found in the Ele ...
Chapter_5_Notes_Periodic
... This collection of gaseous elements was referred to as the INERT GASES because they showed no chemical reactivity. They are also known as NOBLE GASES to convey the nonreactivity nature of these gases. Similarly, copper, silver and gold are referred to as Noble metals because of their resistance to c ...
... This collection of gaseous elements was referred to as the INERT GASES because they showed no chemical reactivity. They are also known as NOBLE GASES to convey the nonreactivity nature of these gases. Similarly, copper, silver and gold are referred to as Noble metals because of their resistance to c ...
chapter 6 - HCC Learning Web
... This collection of gaseous elements was referred to as the INERT GASES because they showed no chemical reactivity. They are also known as NOBLE GASES to convey the nonreactivity nature of these gases. Similarly, copper, silver and gold are referred to as Noble metals because of their resistance to c ...
... This collection of gaseous elements was referred to as the INERT GASES because they showed no chemical reactivity. They are also known as NOBLE GASES to convey the nonreactivity nature of these gases. Similarly, copper, silver and gold are referred to as Noble metals because of their resistance to c ...
05-Notes - HCC Learning Web
... This collection of gaseous elements was referred to as the INERT GASES because they showed no chemical reactivity. They are also known as NOBLE GASES to convey the nonreactivity nature of these gases. Similarly, copper, silver and gold are referred to as Noble metals because of their resistance to c ...
... This collection of gaseous elements was referred to as the INERT GASES because they showed no chemical reactivity. They are also known as NOBLE GASES to convey the nonreactivity nature of these gases. Similarly, copper, silver and gold are referred to as Noble metals because of their resistance to c ...