Atomic structure powerpoint - sec2-chiawl
... • Valence shell - farthest occupied shell from the nucleus • Valence electron - electron in the valence shell ...
... • Valence shell - farthest occupied shell from the nucleus • Valence electron - electron in the valence shell ...
Chapter 4 – Atoms
... Masses of atoms are so small that we define the atomic mass unit (amu) to scale up the numbers. Carbon-12 was chosen as the reference and given a mass value of exactly 12.000 amu. The mass of all other atoms are scaled relative to mass of Carbon-12. The Atomic Mass of an Element in the Periodic Tabl ...
... Masses of atoms are so small that we define the atomic mass unit (amu) to scale up the numbers. Carbon-12 was chosen as the reference and given a mass value of exactly 12.000 amu. The mass of all other atoms are scaled relative to mass of Carbon-12. The Atomic Mass of an Element in the Periodic Tabl ...
CHEM 1211K Test I MULTIPLE CHOICE. (3 points each) 1
... 18) __________ and __________ reside in the atomic nucleus. A) Protons, electrons B) Protons, neutrons C) Electrons, neutrons D) none of the above E) Neutrons, only neutrons 19) In the Rutherford nuclear-atom model, __________. A) the light subatomic particles, protons and neutrons, reside in the n ...
... 18) __________ and __________ reside in the atomic nucleus. A) Protons, electrons B) Protons, neutrons C) Electrons, neutrons D) none of the above E) Neutrons, only neutrons 19) In the Rutherford nuclear-atom model, __________. A) the light subatomic particles, protons and neutrons, reside in the n ...
Atoms, Molecules and Periodic Table
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Atomic_structure
... The atomic number tells you how many protons there are in one atom of an element. The number of electrons is equal to the number of protons, which is why the atom has no overall charge. Since the mass of the atom is made up of the neutrons and protons, the number of neutrons in an atom is calculated ...
... The atomic number tells you how many protons there are in one atom of an element. The number of electrons is equal to the number of protons, which is why the atom has no overall charge. Since the mass of the atom is made up of the neutrons and protons, the number of neutrons in an atom is calculated ...
Atomic Structure Atomic_Structure
... 1. What is meant when an atom is said to be in its ground state? CORRECT: The state an atom is found naturally. 3. The subatomic particle(s) found in the nucleus of an atom are CORRECT: protons and neutrons. 5. What is the maximum number of electrons that can occupy an atomic orbital? CORRECT: 2, 6 ...
... 1. What is meant when an atom is said to be in its ground state? CORRECT: The state an atom is found naturally. 3. The subatomic particle(s) found in the nucleus of an atom are CORRECT: protons and neutrons. 5. What is the maximum number of electrons that can occupy an atomic orbital? CORRECT: 2, 6 ...
key concepts of matter
... Key Concept 1: During a chemical reaction, the atoms of substances rearrange themselves into a new configuration forming new substances. The reactants (or the energy and atoms or molecules of the original substance) combine to produce products (or the energy, atoms, and molecules of the new substanc ...
... Key Concept 1: During a chemical reaction, the atoms of substances rearrange themselves into a new configuration forming new substances. The reactants (or the energy and atoms or molecules of the original substance) combine to produce products (or the energy, atoms, and molecules of the new substanc ...
![Review 2 key - Home [www.petoskeyschools.org]](http://s1.studyres.com/store/data/000860497_1-e3bea510ba504d09bc42d6f5e4936390-300x300.png)
Review 2 key - Home [www.petoskeyschools.org]
... Ions- positive or negatively charged atom or groups of atoms (Ca2+, N3-) Isotope- the number of neutrons is changed and the mass number is different from the average atomic mass 24 Rubidium has two naturally occurring isotopes, Rb-85 (84.9118 amu) and Rb-87 (86.9092 amu). If Rubidium has an average ...
... Ions- positive or negatively charged atom or groups of atoms (Ca2+, N3-) Isotope- the number of neutrons is changed and the mass number is different from the average atomic mass 24 Rubidium has two naturally occurring isotopes, Rb-85 (84.9118 amu) and Rb-87 (86.9092 amu). If Rubidium has an average ...
elements and isotopes - vocabulary
... The average mass of all atoms of a particular element found in nature. It is also called relative atomic mass. It is expressed in atomic mass units (amu). On the atomic mass scale, the mass of one atom of carbon-12 is set up as a standard and is exactly 12 amu. naturally occurring isotope An isotope ...
... The average mass of all atoms of a particular element found in nature. It is also called relative atomic mass. It is expressed in atomic mass units (amu). On the atomic mass scale, the mass of one atom of carbon-12 is set up as a standard and is exactly 12 amu. naturally occurring isotope An isotope ...
Key Concept 1: An atom is the smallest unit of an element that
... Key Concept 10: The reactivity of an atom is how easily and readily its valence electrons interact with the valence electrons of other atoms. Atoms of metals have a tendency to transfer electrons to nonmetals when they react. Atoms of nonmetals have a tendency to gain or share electrons when they re ...
... Key Concept 10: The reactivity of an atom is how easily and readily its valence electrons interact with the valence electrons of other atoms. Atoms of metals have a tendency to transfer electrons to nonmetals when they react. Atoms of nonmetals have a tendency to gain or share electrons when they re ...
Periodic Table - Mrs. Sousa`s Science Site
... form - ions (anions). Covalent bonds Metalloids (semi-metals) Separated by zig-zag line Image ...
... form - ions (anions). Covalent bonds Metalloids (semi-metals) Separated by zig-zag line Image ...
John Dalton
... number ratios. For example, water is a compound made up of 2 atoms of hydrogen and 1 atom of oxygen (a ratio of 2:1). Three atoms of hydrogen and 2 atoms of oxygen cannot combine to make ...
... number ratios. For example, water is a compound made up of 2 atoms of hydrogen and 1 atom of oxygen (a ratio of 2:1). Three atoms of hydrogen and 2 atoms of oxygen cannot combine to make ...
Chapter 5 - King Fahd University of Petroleum and Minerals
... • 5.3: Properties of Subatomic Particles. • Protons, neutrons, and electrons are described as subatomic particles. Protons and neutrons make up the nucleus of an atom. Electrons are located outside the nucleus. • The atomic number of an atom is the number of protons in the nucleus. • The sum of the ...
... • 5.3: Properties of Subatomic Particles. • Protons, neutrons, and electrons are described as subatomic particles. Protons and neutrons make up the nucleus of an atom. Electrons are located outside the nucleus. • The atomic number of an atom is the number of protons in the nucleus. • The sum of the ...
B. Atoms are so and
... Atomic # = protons = electrons Atomic mass = protons + neutrons VI. Rule Breakers A. ___________ 1. Ions have lost or gained _________________. 2. They no longer have the _________________ number of electrons as protons. 3. Only the _________________ number can change (remember the electrons are on ...
... Atomic # = protons = electrons Atomic mass = protons + neutrons VI. Rule Breakers A. ___________ 1. Ions have lost or gained _________________. 2. They no longer have the _________________ number of electrons as protons. 3. Only the _________________ number can change (remember the electrons are on ...
effective nuclear charge
... Trends in the Noble Gases atomic radius increases down the column ionization energy decreases down the column ◦ very high IE very unreactive ◦ only found uncombined in nature ◦ used as “inert” atmosphere when reactions with other gases would be undersirable melting point and boiling point inc ...
... Trends in the Noble Gases atomic radius increases down the column ionization energy decreases down the column ◦ very high IE very unreactive ◦ only found uncombined in nature ◦ used as “inert” atmosphere when reactions with other gases would be undersirable melting point and boiling point inc ...
Atomic Mass
... same number of neutrons. •Isotopes are atoms of the same element with different numbers of neutrons. •Isotope symbol: ...
... same number of neutrons. •Isotopes are atoms of the same element with different numbers of neutrons. •Isotope symbol: ...
Practice Test Chapters 17 & 18
... They are not placed directly above or below each other because they ...
... They are not placed directly above or below each other because they ...
Atoms - Dr. Vickie M. Williamson
... ! Atoms of the _______ element are exactly alike and differ from those of other elements. ! __________ are formed by the joining of atoms of two or more elements. ! A given compound always has the ______ number and type of atoms. ! Atoms are not created or destroyed, only ______________, in chem ...
... ! Atoms of the _______ element are exactly alike and differ from those of other elements. ! __________ are formed by the joining of atoms of two or more elements. ! A given compound always has the ______ number and type of atoms. ! Atoms are not created or destroyed, only ______________, in chem ...
Chemistry: Spring Semester Lecture Notes - Teach-n-Learn-Chem
... slightly, and a tiny fraction bounced back. Conclusions: ...
... slightly, and a tiny fraction bounced back. Conclusions: ...
February 10 Clicker Questions
... Electron Configuration and the Periodic Table Which of numbers in the periodic table below corresponds to the group of elements in which the 2p orbitals are being filled. ...
... Electron Configuration and the Periodic Table Which of numbers in the periodic table below corresponds to the group of elements in which the 2p orbitals are being filled. ...
Atomic Number
... Protons and neutrons are responsible for most of the atomic mass of an atom, while electrons contribute a very small amount of mass(9.108 X 10-28 grams). ...
... Protons and neutrons are responsible for most of the atomic mass of an atom, while electrons contribute a very small amount of mass(9.108 X 10-28 grams). ...
