File
... ·Good conductors of thermal energy. Nonmetals ·Nonmetals are found to the right of the zigzag ·Nonmetals have a high # of valence electrons ·More than half are gases at room temperature ·not malleable ·not ductile ·poor conductors of heat and electricity ·not shiny Metalloids ·Metalloids a ...
... ·Good conductors of thermal energy. Nonmetals ·Nonmetals are found to the right of the zigzag ·Nonmetals have a high # of valence electrons ·More than half are gases at room temperature ·not malleable ·not ductile ·poor conductors of heat and electricity ·not shiny Metalloids ·Metalloids a ...
Unit 2 Exam Review: Matter and its Properties This review does not
... CHEM 5B use the Periodic Table to identify and explain the properties of chemical families, including alkali metals, alkaline earth metals, halogens, noble gases, and transition metals 21. Which elements are designated as noble gases? What is the most significant property of these elements? 22. Thi ...
... CHEM 5B use the Periodic Table to identify and explain the properties of chemical families, including alkali metals, alkaline earth metals, halogens, noble gases, and transition metals 21. Which elements are designated as noble gases? What is the most significant property of these elements? 22. Thi ...
Chapter6
... 2. Name the three broad classes of elements and give 3 examples of each. Note each the state of matter of each example at STP ...
... 2. Name the three broad classes of elements and give 3 examples of each. Note each the state of matter of each example at STP ...
Periodic Table Notes
... electricity better than nonmetals but not as well as metals ► Both ductile and malleable ...
... electricity better than nonmetals but not as well as metals ► Both ductile and malleable ...
Periodic Trends - Naperville Community Unit School
... of exempting scientists from fighting in wars. ...
... of exempting scientists from fighting in wars. ...
Chapter 5 The Periodic Table Section 1 Organizing the Elements
... > What are the three main categories of elements? > All elements are either metals, nonmetals, or semiconductors. • Elements in each category have similar properties. – metal: an element that is shiny and that conducts heat and electricity well – nonmetal: an element conducts heat and electricity po ...
... > What are the three main categories of elements? > All elements are either metals, nonmetals, or semiconductors. • Elements in each category have similar properties. – metal: an element that is shiny and that conducts heat and electricity well – nonmetal: an element conducts heat and electricity po ...
The Periodic Table
... Based on their electron configurations, elements are classified as noble gases, representative elements, transition metals, or inner transition metals. ...
... Based on their electron configurations, elements are classified as noble gases, representative elements, transition metals, or inner transition metals. ...
unit-8-ppt-3-metalsnon-metalsie-and-size-of-atom
... Going from left to right on the periodic table, the atomic number increases and the _________ charge on the nucleus increases. Therefore, the __________ between the _____ and ________ increases, causing the radius to ...
... Going from left to right on the periodic table, the atomic number increases and the _________ charge on the nucleus increases. Therefore, the __________ between the _____ and ________ increases, causing the radius to ...
Periodic Trends
... For each of the four trends (atomic radius, ionization energy, reactivity, electronegativity) You need to know: Definitions of each trend Pattern of the trend (where on the periodic table is this trend the highest? The lowest?) Compare elements using trends (of these two elements, which has th ...
... For each of the four trends (atomic radius, ionization energy, reactivity, electronegativity) You need to know: Definitions of each trend Pattern of the trend (where on the periodic table is this trend the highest? The lowest?) Compare elements using trends (of these two elements, which has th ...
period
... Note that both hydrogen (H) and potassium (K) have just 1 electron in their outermost shell. Note also that these elements are both found in the 1st column of the periodic table. This is not a coincidence! ...
... Note that both hydrogen (H) and potassium (K) have just 1 electron in their outermost shell. Note also that these elements are both found in the 1st column of the periodic table. This is not a coincidence! ...
Unit Six: Atomic structure
... Carbon, the graphite in “pencil lead” is a great example of a nonmetallic element. Nonmetals are poor conductors of heat and electricity Nonmetals tend to be brittle Many nonmetals are gases at room temperature ...
... Carbon, the graphite in “pencil lead” is a great example of a nonmetallic element. Nonmetals are poor conductors of heat and electricity Nonmetals tend to be brittle Many nonmetals are gases at room temperature ...
chapter-5-periodic-classification-of-elements
... the name of preceding element in the same group. It was correct and useful as scandium, gallium and germanium, discovered later, have properties similar to Eka–boron, Eka–aluminium and Eka–silicon, respectively. 16. Write any one of the strength of Mendeléev’s Periodic Table. Answer: One of the stre ...
... the name of preceding element in the same group. It was correct and useful as scandium, gallium and germanium, discovered later, have properties similar to Eka–boron, Eka–aluminium and Eka–silicon, respectively. 16. Write any one of the strength of Mendeléev’s Periodic Table. Answer: One of the stre ...
Safety First I can… o Follow safe laboratory practices o Identify lab
... use Zeff , shielding, and electron-electron repulsion to explain the trends discuss the size of an atom in terms of the size of the electron cloud. Discuss the role played by electron-electron repulsions and electron-proton attractions on the size of the electron cloud. define and give an example of ...
... use Zeff , shielding, and electron-electron repulsion to explain the trends discuss the size of an atom in terms of the size of the electron cloud. Discuss the role played by electron-electron repulsions and electron-proton attractions on the size of the electron cloud. define and give an example of ...
Patterns of Behavior of Main Group Elements (cont.) Patterns of
... them to achieve the configuration of the nearest noble gas. ...
... them to achieve the configuration of the nearest noble gas. ...
Chapter 6 lecture 2013
... • Maximum of 7 periods that represent the energy levels of the atom • Every element in the first period has ONE energy level • Second period – TWO energy levels • Third period – THREE energy levels ...
... • Maximum of 7 periods that represent the energy levels of the atom • Every element in the first period has ONE energy level • Second period – TWO energy levels • Third period – THREE energy levels ...
Periodic Table of the Elements
... – Elements in Period 1 and the first half of Period 2 gain or lose electrons in order to become like HELIUM with 2 electrons in the valence shell (Duet Rule) – Everyone else gains or loses electrons to become like Group 18 Noble Gases and have 8 electrons in the valence shell (Octet Rule) ...
... – Elements in Period 1 and the first half of Period 2 gain or lose electrons in order to become like HELIUM with 2 electrons in the valence shell (Duet Rule) – Everyone else gains or loses electrons to become like Group 18 Noble Gases and have 8 electrons in the valence shell (Octet Rule) ...
Regents Chemistry NOTE PACKET
... http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-1/Alkaline-Earth-Metals-Real-life-applications.html ...
... http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-1/Alkaline-Earth-Metals-Real-life-applications.html ...
Periodic Law
... change that occurs when an electron is acquired by a neutral atom When an atom gains an electron easily, a large amount of energy is released (indicated by a high negative number). These elements will have a high electron affinity. ...
... change that occurs when an electron is acquired by a neutral atom When an atom gains an electron easily, a large amount of energy is released (indicated by a high negative number). These elements will have a high electron affinity. ...
word - My eCoach
... energy. Plot the ionization energy (y-axis) of the first 54 elements against their atomic number (x-axis). 2. Label each point on the graph with the symbol of the element. Analysis and Conclusion 1. Describe the general shape of the graph. ...
... energy. Plot the ionization energy (y-axis) of the first 54 elements against their atomic number (x-axis). 2. Label each point on the graph with the symbol of the element. Analysis and Conclusion 1. Describe the general shape of the graph. ...
Lesson 1 - Scientist in Residence
... Atoms consist of a nucleus containing a number of protons, which have a positive charge and neutrons, which have no charge, and surrounded by a cloud of electrons, which have a negative charge equal in magnitude to the proton charge. There is usually one electron per proton. Elements are defined by ...
... Atoms consist of a nucleus containing a number of protons, which have a positive charge and neutrons, which have no charge, and surrounded by a cloud of electrons, which have a negative charge equal in magnitude to the proton charge. There is usually one electron per proton. Elements are defined by ...
document
... or more elements in a fixed ratio by mass. • Formula- gives the ratio of a compounds constituent elements and identifies each element by its atomic symbol • Mixture- a combination of two or more pure substances ...
... or more elements in a fixed ratio by mass. • Formula- gives the ratio of a compounds constituent elements and identifies each element by its atomic symbol • Mixture- a combination of two or more pure substances ...
New Title
... 4. Circle the letter of each sentence that is true about valence electrons and chemical bonding. a. Most atoms are less stable when they have eight valence electrons. b. Atoms with eight valence electrons easily form compounds. c. Having eight valence electrons makes atoms very reactive. d. Atoms wi ...
... 4. Circle the letter of each sentence that is true about valence electrons and chemical bonding. a. Most atoms are less stable when they have eight valence electrons. b. Atoms with eight valence electrons easily form compounds. c. Having eight valence electrons makes atoms very reactive. d. Atoms wi ...
Chapter Test B
... atomic radius ion Group 1, Period 7, s block All three groups of elements are metals. Alkali and alkaline-earth metals are so reactive that they are not found in nature as free elements. Transition elements are generally less reactive. Some are so unreactive that they do not form compounds easily an ...
... atomic radius ion Group 1, Period 7, s block All three groups of elements are metals. Alkali and alkaline-earth metals are so reactive that they are not found in nature as free elements. Transition elements are generally less reactive. Some are so unreactive that they do not form compounds easily an ...
California Standards Practice
... 25. The periodic table is organized into blocks representing the energy sublevel being filled with valence electrons. In the periodic table, which sequence lists the blocks in s-p-d-f order? A. W, Y, X, Z B. X, Y, Z, W C. Y, W, Z, X D. Y, Z, W, X 26. In the periodic table, which block represents the ...
... 25. The periodic table is organized into blocks representing the energy sublevel being filled with valence electrons. In the periodic table, which sequence lists the blocks in s-p-d-f order? A. W, Y, X, Z B. X, Y, Z, W C. Y, W, Z, X D. Y, Z, W, X 26. In the periodic table, which block represents the ...
The Periodic Table
... The noble gases (inert gases) are the elements in Group 8A of the periodic table. S & P sublevels are completely filled with electrons. Due to filled outer energy level, noble gases do not readily react with other elements. ...
... The noble gases (inert gases) are the elements in Group 8A of the periodic table. S & P sublevels are completely filled with electrons. Due to filled outer energy level, noble gases do not readily react with other elements. ...
Period 3 element
A period 3 element is one of the chemical elements in the third row (or period) of the periodic table of the chemical elements. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the elements as their atomic number increases: a new row is begun when the periodic table skips a row and a chemical behaviour begins to repeat, meaning that elements with similar behavior fall into the same vertical columns. The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block. Note that there is a 3d orbital, but it is not filled until Period 4, such giving the period table its characteristic shape of ""two rows at a time"". All of the period 3 elements occur in nature and have at least one stable isotope.