Atomic Structure

An atom of "Lithium" contains _____ protons.

An atom of "Silicon" contains _____ neutrons.

An atom of "Tin" contains _____ electrons.

The mass number of "Gallium" is _____.

The atomic mass of "Calcium" is ____.

An atom of "Sulfur" contains _____ electrons.

An atom of "Mercury" contains _____ protons.

An atom of "Titanium" contains _____ neutrons.

The atomic mass of "Aluminum" is ____.

The mass number of "Oxygen" is ____.