Atomic Structure Question Preview (ID: 27499)


Atomic Structure. TEACHERS: click here for quick copy question ID numbers.

The Atomic Number of an element is equal to...
a) its number of protons.
b) its number of neutrons.
c) its total number of subatomic particles.
d) its weight.

A proton is...
a) a positively charged particle in the nucleus of the atom.
b) a negatively charged particle in the nucleus of the atom.
c) a particle in the nucleus of the atom with no charge.
d) a negatively charged particle surrounding the nucleus of the atom.

An electron is...
a) a negatively charged particle surrounding the nucleus of the atom.
b) a positively charged particle surrounding the nucleus of the atom.
c) a negatively charged particle in the nucleus of the atom.
d) a particle surrounding the nucleus of the atom with no charge.

A neutron is...
a) a particle in the nucleus that has no charge.
b) a negatively charged particle in the nucleus of the atom.
c) a positively charged particle in the nucleus of the atom.
d) a particle surrounding the nucleus of the atom with no charge.

Electrons are...
a) a lot smaller than protons.
b) bigger than protons.
c) the same size as protons.
d) smaller than protons, but only by a little.

The vast majority of an atoms mass comes from its...
a) protons and neutrons.
b) protons only.
c) electrons only.
d) protons and electrons.

In an atom, the electrons are located...
a) in three dimensional regions around the nucleus that are different distances away from the nucleus.
b) in the nucleus.
c) in a giant, totally random cloud around the nucleus.
d) in two dimensional circles around the nucleus.

The number of electrons that fit into one level around the nucleus is...
a) 2 for the innermost level and 8 for all other levels.
b) infinite.
c) 2 for the innermost level, 8 for the next level, 32 for the next level, 128 for the next level, etc.
d) 8 for every level.

Electrons are held around the nucleus of an atom by...
a) their attraction to the oppositely charged protons.
b) glue.
c) the power of love.
d) their attraction to the oppositely charged neutrons.

Valence electrons are...
a) the electrons located in the outermost energy level.
b) the electrons located in the innermost energy level.
c) located in the nucleus.
d) electrons that don't have a charge.

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