Chemistry Final Exam Review 2: Question Preview (ID: 9967)

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Which is not an ionic compound?
a) LiF
b) K2S
c) NaCl
d) CO2

Which set of elements have the most similar properties
a) Hf, H, He
b) Ar, Kr, Xe
c) Lu, Lr, Yb
d) Ca, K, SC

Group 1 contains which elements
a) alkali metals
b) nobel gases
c) halogens
d) alkaline earth metals

The colums on a periodic table are called:
a) groups
b) trends
c) metals
d) periods

The following ground state electron configuration represents which element? 1s2 2s2 2p5
a) B
b) F
c) O
d) C

Which ion does not have the same electron configuration of Argon(1s2, 2s2 2p6, 3s2 3p6)?
a) Ca2+
b) Na1+
c) K+
d) Cl-

What is the mass number of an atom which contains 28 protons, 28 electrons, and 34 neutrons?
a) 28
b) 90
c) 62
d) 56

Rutherford's alpha particle scattering experiment established that:
a) protons are not evenly distributed throughout an atom.
b) atoms are made of protons, neutrons, and electrons.
c) electrons have a positive charge.
d) electrons have a negative charge.

Isotoptes have the same number of protons
a) Isotoptes have the same atomic number
b) Isotoptes have the same atomic mass
c) Isotoptes have the same chemical symbol
d) Isotoptes have the same number of protons

a) Atoms
b) Molecules
c) Isotopes
d) Elements

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