Chapter 8
... • Ions are atoms that have gained or lost electrons so that the total number of electrons are no longer the same. The number of protons is still the same. • Every time an electron is lost the charge becomes +1. Only metals will lose electrons. Every time an electron is gained the charge becomes -1. ...
... • Ions are atoms that have gained or lost electrons so that the total number of electrons are no longer the same. The number of protons is still the same. • Every time an electron is lost the charge becomes +1. Only metals will lose electrons. Every time an electron is gained the charge becomes -1. ...
lecture CH2 chem121pikul
... Nucleus and structure of atom Atomic number, Mass Number, Isotopes, Atomic Weight, & Atomic Mass Periodic Table: groups & periods: similar properties within groups Electron structure: valence electrons and electron dot symbols Periodic trends: atomic size and ionization energy ...
... Nucleus and structure of atom Atomic number, Mass Number, Isotopes, Atomic Weight, & Atomic Mass Periodic Table: groups & periods: similar properties within groups Electron structure: valence electrons and electron dot symbols Periodic trends: atomic size and ionization energy ...
Chapter 3 - WordPress.com
... • In 1911, Rutherford and his coworkers at the University of Manchester, England, directed a narrow beam of alpha particles at a very thin sheet of gold foil. • Based on Thomson’s model of the atom he expected the alpha particles to pass through the foil but not all did! ...
... • In 1911, Rutherford and his coworkers at the University of Manchester, England, directed a narrow beam of alpha particles at a very thin sheet of gold foil. • Based on Thomson’s model of the atom he expected the alpha particles to pass through the foil but not all did! ...
atoms - cloudfront.net
... 4. In a chemical reaction, atoms are merely rearranged to form new compounds; they are not created, destroyed, or changed into atoms of any other elements. Yes, except for nuclear reactions that can change atoms of one element to a different element ...
... 4. In a chemical reaction, atoms are merely rearranged to form new compounds; they are not created, destroyed, or changed into atoms of any other elements. Yes, except for nuclear reactions that can change atoms of one element to a different element ...
topic1
... 10. Principal energy levels correspond to ____________ or _________ on the periodic table. 11. Lithium is in the _________ principal energy level, while Bromine is in the ______ principal energy level. This means that Bromine’s valence electrons are (farther/closer) to the nucleus than Lithium’s val ...
... 10. Principal energy levels correspond to ____________ or _________ on the periodic table. 11. Lithium is in the _________ principal energy level, while Bromine is in the ______ principal energy level. This means that Bromine’s valence electrons are (farther/closer) to the nucleus than Lithium’s val ...
8.1 Atoms and Their Parts Assignment
... number of protons and electrons are usually equal. This equality is important so that the atom as a whole is neither positively nor negatively charged. It is said to be neutral. Electrons have nearly 0 mass. Electrons orbit in specific locations starting closest to the nucleus. Two electrons fit in ...
... number of protons and electrons are usually equal. This equality is important so that the atom as a whole is neither positively nor negatively charged. It is said to be neutral. Electrons have nearly 0 mass. Electrons orbit in specific locations starting closest to the nucleus. Two electrons fit in ...
Chemistry Chapter 5 The Periodic Law
... atomic number, not atomic mass. The average atomic mass on the periodic table is the weighted average of the isotopes of an element and some elements have large percentages of heavy isotopes. ...
... atomic number, not atomic mass. The average atomic mass on the periodic table is the weighted average of the isotopes of an element and some elements have large percentages of heavy isotopes. ...
The Periodic Table
... and electricity; have a metallic shine; tend to lose electrons during reactions ...
... and electricity; have a metallic shine; tend to lose electrons during reactions ...
Chapter 2 ppt
... and electricity; have a metallic shine; tend to lose electrons during reactions ...
... and electricity; have a metallic shine; tend to lose electrons during reactions ...
Chapter 2
... • ___________ –between two atoms are so unequal in their attraction for valence electrons that one atom strips an electron completely from the other. • Example- sodium (one valence electron) in its third shell transfers this electron to chlorine with 7 valence electrons in its third shell. • Now, s ...
... • ___________ –between two atoms are so unequal in their attraction for valence electrons that one atom strips an electron completely from the other. • Example- sodium (one valence electron) in its third shell transfers this electron to chlorine with 7 valence electrons in its third shell. • Now, s ...
2.4 The Periodic Table
... • The atomic weight is calculated as the sum of the masses of the individual isotopes for that element. Atomic weight = [(isotope abundance) × (isotope mass)] • The Greek symbol indicates summing of terms. ...
... • The atomic weight is calculated as the sum of the masses of the individual isotopes for that element. Atomic weight = [(isotope abundance) × (isotope mass)] • The Greek symbol indicates summing of terms. ...
Atomic Structure
... • Carbon has 6 protons and 6 neutrons, what is Carbon’s mass number? C-12 • An isotope of Carbon has 6 protons and 8 neutrons, what is carbon’s mass number? C-14 Remember the number of protons NEVER changes for an element! ...
... • Carbon has 6 protons and 6 neutrons, what is Carbon’s mass number? C-12 • An isotope of Carbon has 6 protons and 8 neutrons, what is carbon’s mass number? C-14 Remember the number of protons NEVER changes for an element! ...
Notes
... Lewis Dot Diagrams… • Gilbert Lewis used a different model than Bohr, and he only showed the valence e‐ in it. • His model is called the Lewis dot structure . He put dots around the symbols so that we can see just the valence electrons for the elements (so we can easily see which e‐ are goin ...
... Lewis Dot Diagrams… • Gilbert Lewis used a different model than Bohr, and he only showed the valence e‐ in it. • His model is called the Lewis dot structure . He put dots around the symbols so that we can see just the valence electrons for the elements (so we can easily see which e‐ are goin ...
Atomic Structure and Periodic Table Review Guide
... 1.1 Atoms are the smallest form of elements Answer each question. You may use your book, reading guides, or reinforcement guides to help you. Answers do not have to be in complete sentences. 1. What does the atomic number tell you? 2. Where are electrons located in an atom and what is their charge? ...
... 1.1 Atoms are the smallest form of elements Answer each question. You may use your book, reading guides, or reinforcement guides to help you. Answers do not have to be in complete sentences. 1. What does the atomic number tell you? 2. Where are electrons located in an atom and what is their charge? ...
Bohr Diagram - hrsbstaff.ednet.ns.ca
... An ion of chlorine must also have _______ electrons because it is more stable. This results in chlorine having a net charge of 1-. The name is __________ chloride ...
... An ion of chlorine must also have _______ electrons because it is more stable. This results in chlorine having a net charge of 1-. The name is __________ chloride ...
Unit 1- Matter and Energy 1
... o Electrons in orbitals closer to the nucleus have ___________ energy and are __________ stable o Electrons in orbitals further from the nucleus have ____________ energy and are ________ stable o When all electrons in an atom are in their lowest possible energy level, the atom is at its ________ sta ...
... o Electrons in orbitals closer to the nucleus have ___________ energy and are __________ stable o Electrons in orbitals further from the nucleus have ____________ energy and are ________ stable o When all electrons in an atom are in their lowest possible energy level, the atom is at its ________ sta ...
HW / Unit 2
... 1. Classify each of the following statements as true or false. a. The physical properties of Ti are expected to be intermediate between those of Sc and V. b. The formula of the chloride of Ti is expected to be the same as those of Sc and V. c. The formula of the oxide of Ti is expected to be the sam ...
... 1. Classify each of the following statements as true or false. a. The physical properties of Ti are expected to be intermediate between those of Sc and V. b. The formula of the chloride of Ti is expected to be the same as those of Sc and V. c. The formula of the oxide of Ti is expected to be the sam ...
File
... • The atomic number is usually the biggest number listed in the box for each element (look at periodic table). • The atomic number (or number of protons) identifies an element. • The modern periodic table orders elements according to increasing atomic number. • The charge of a proton is assigned num ...
... • The atomic number is usually the biggest number listed in the box for each element (look at periodic table). • The atomic number (or number of protons) identifies an element. • The modern periodic table orders elements according to increasing atomic number. • The charge of a proton is assigned num ...
Electrons
... elements in a period have the same number of electron shells. Every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons. It goes down the periodic table like that. At this time, t ...
... elements in a period have the same number of electron shells. Every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons. It goes down the periodic table like that. At this time, t ...
Document
... spaces in his table when the properties of the elements above and below did not seem to match. The existence of unknown elements was predicted by Mendeleev on the basis of the blank spaces. When the unknown elements were discovered, it was found that Mendeleev had closely predicted the properties of ...
... spaces in his table when the properties of the elements above and below did not seem to match. The existence of unknown elements was predicted by Mendeleev on the basis of the blank spaces. When the unknown elements were discovered, it was found that Mendeleev had closely predicted the properties of ...
- Lexington JHS
... spaces in his table when the properties of the elements above and below did not seem to match. The existence of unknown elements was predicted by Mendeleev on the basis of the blank spaces. When the unknown elements were discovered, it was found that Mendeleev had closely predicted the properties of ...
... spaces in his table when the properties of the elements above and below did not seem to match. The existence of unknown elements was predicted by Mendeleev on the basis of the blank spaces. When the unknown elements were discovered, it was found that Mendeleev had closely predicted the properties of ...
PS 2.3
... this time. Let students know that they will be discussed in detail as each term is introduced. View ETV Streamline SC clip Energy and the Chemistry of Life – Atoms and Elements. This clip goes into the structure of the atom and the subatomic particles. Atoms and Elements 3:33 E1 5. Use handout one ( ...
... this time. Let students know that they will be discussed in detail as each term is introduced. View ETV Streamline SC clip Energy and the Chemistry of Life – Atoms and Elements. This clip goes into the structure of the atom and the subatomic particles. Atoms and Elements 3:33 E1 5. Use handout one ( ...
ATOMIC THEORY
... The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different. What makes atoms of different elements different? The fundamental characteristic that all atoms of the same element share is the number of protons . All atoms of hydrogen have on ...
... The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different. What makes atoms of different elements different? The fundamental characteristic that all atoms of the same element share is the number of protons . All atoms of hydrogen have on ...