1)
The element magnesium has 2 valence electrons. What is the most likely charge on a magnesium ion?
A) 2+
B) 2-
C) 6-
D) 6+
2)
Which subatomic particle has the least mass?
A) electron
B) nucleus
C) neutron
D) proton
3)

silicon
sodium
nitrogen
potassium
Use the periodic table to predict which element is nonmetallic AND a gas at room temperature.
A) nitrogen
B) potassium
C) silicon
D) sodium
4)
Which is a property of a neutron?
A) 0 charge
B) +1 charge
C) -1 Charge
D) Essentially no mass
5)

The element germanium is a lustrous, hard, grayish-white solid in the carbon group. It is a semiconductor with an appearance similar to elemental silicon. Based on these facts, we should classify germanium as a
A) metal
B) nonmetal
C) metalloid
D) rare Earth element
6)
An isotope with 8 protons, 9 neutrons, and 8 electrons would have which symbol?
A) 16F
B) 16O
C) 17F
D) 17O
7)
What can be concluded about the atom from knowing that oxygen-18 has an atomic number of 8?
A) An oxygen atom that includes 8 baryons, 9 prions, and 10 neutrons.
B) This oxygen isotope contains 8 electrons, 8 protons, and 10 neutrons.
C) It's an oxygen allotrope incorporates 7 electrons, 7 protons, and 7 quarks.
D) The oxygen configuration consists of 6 electrons, 8 photons, and 10 neutrons.
8)
Because protons are positively charged, they will repel when in close contact with one another. Neutrons separate the protons in the nucleus. Protons and neutrons are held together by the force.
A) magnetic
B) quantum
C) strong
D) weak
9)
Neutrons are found in the nucleus and separate the other particles so that the strong force can hold the nucleus together. Which particles are positively charged and need to be separated so that they don't repel?
A) electrons
B) neutrons
C) protons
D) quarks
10)

The nucleus of the atom contains the greatest concentration of mass of an atom. Which arrow is pointing at the nucleus of Nitrogen?
A) A
B) B
C) C
D) D
11)

Identify the number of neutrons in one atom of sulfur with an atomic mass number of 34 amu.
A) 16
B) 18
C) 32
D) 34
12)
The smallest unit of an element that retains all the characteristics of that element is called a(n)
A) atom.
B) compound.
C) molecule.
D) proton.
13)

The outlined elements have a major characteristic in common. They are all
A) metals.
B) nonmetals.
C) very reactive.
D) solids at room temperature.
14)
Elements in the same group/family of the periodic table are similar in what way?
A) They are all metals
B) They are all nonmetals
C) They have a full outer shell of electrons.
D) They have the same number of valence electrons.
15)

Sodium has an atomic number of 11 and has a net charge of 0. When sodium combines with chlorine, it has a net charge of +1. Why?
A) Sodium loses a negative electron when forming chemical bonds.
B) Sodium gains a + proton when forming chemical bonds.
C) Sodium loses a + proton when forming chemical bonds.
D) Sodium shares a negative electron with chlorine.
16)
The atomic nucleus contains two subatomic particles, the proton and the neutron. Atoms of different elements have different numbers of protons and neutrons. The nuclei of atoms that are the most stable have proton to neutron ratios of
A) 1 to 1
B) 2 to 1
C) 1 to 2
D) there is no pattern that indicates stability in the nucleus
17)
What can you conclude about the classification of silicon?
A) Silicon is a noble gas and has a full valence electron shell, is chemically non-reactive, colorless, odorless, and is a gas at room temperature.
B) Silicon is a metal and is shiny, malleable, ductile, conducts heat and electricity, forms basic oxides, and forms cations in aqueous solution.
C) Silicon is a nonmetal and is dull, brittle, poor conductor of heat and electricity, forms acidic oxides, and forms anions in aqueous solution.
D) Silicon is a metalloid and has properties of both metals and nonmetals - it appears lustrous, but is brittle and a poor conductor of heat and electricity.
18)
Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be predicted based on general periodic trends. One of these trends, ionization energy, increases up a group and to the right along a period and can be defined as the .
A) energy required to add an electron
B) energy required to excite an electron
C) energy required to remove a core electron
D) energy required to remove a valence electron
19)

Consider the element sodium. It's atomic number is and equals .
A) 11; the number of protons
B) 12; the number of neutrons
C) 23; the sum of protons and neutrons
D) 23; the number of electrons
20)

What is the identity of the atom shown?
A) fluorine
B) neon
C) nitrogen
D) potassium