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70 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The number of neutrons in the nucleus of a specific atom is equal to its___ |
D) Mass Number - the atomic number Ex: Boron: 11(Mass #) - 5 (atomic number) = 6 Neutrons. |
A. Atomic Mass B. Mass Number C. Atomic Number D. Mass number Minus the atomic number |
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In all neutral atoms, there are equal numbers of: |
D) Electrons and Protons |
A. Protons and neutrons B. Positrons and electrons C. neutrons and electrons D. electrons and protons |
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The species designed as 56/24, what is the element? |
D) Cr Mass number: 56 Atomic Number: 24 |
A. Fe B.Ge C.Ba D.Cr |
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What do these have in common? 20Ne, 19F-, 24Mg2+. |
C) The same number of protons |
A.the same number of protons B.the same number of neutrons C.the same number of protons D.the same size |
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Which statement concerning the structure of the atom is correct? |
D) Protons and neutrons have most of the mass but occupy very little of the volume of the atom. |
A. Protons and neutrons have most of the mass and occupy most of the volume of the atom B. Electrons have most of the mass and occupy most of the volume of the atom. C. Electrons have most of the mass but occupy very little of the volume of the atom. D. Protons and neutrons have most of the mass but occupy very little of the volume of the atom. |
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The number of neutrons in the 37/17 Cl- ion is: |
B) 20 N= Mass- atomic number N= 37-17= 20 |
A. 17 B. 20 C. 21 D. 37 |
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An argon atom is iso electronic with: |
C) Ti4+ |
A. Cl B. Ca C. Ti4+ D. N3- |
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Which pair of particles has the same number of electrons? |
A) F-, Mg 2+ |
A. F-, Mg 2+ B. Ne, Ar C. Br-, Se D. Al 3+, P 3- |
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Which statement is true? |
B) The atomic number of an element is the number of protons in one atom. |
A. The nucleus of an atom contains neutrons and electrons. B.The atomic number of an element is the number of protons in one atom. C. the mass number of an atom is the number of protons in the nucleus plus the number of electrons outside. D. The number of electrons outside the nucleus us the same as the number of neutrons in the nucleus. |
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The orbitals of 2p electrons are often represented as being |
C) Dumbbell shaped |
A) Elliptical B) Pyramidal C)Dumbbell shaped D) Tetrahedral E) Spherical |
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Which atom description represents a particle (ion) with an electrical charge of 1+ |
A) Nucleus: n=1 2e |
A) Nucleus: n=1(2e)
B) Nucleus: n=1(2e), n=2(8e), n=3(18e) C) Nucleus: n=1(2e) n=2(8e) n=3(18e) n=4 (1e) |
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