Atoms, Ions, Valence

What charge does an atom have when it GAINS electrons?

• Positive

• Negative

• Neutral

What subatomic particle changes in an ion?

• The number of electrons

• The number of protons

• The number of neutrons

What type of atom is element C?

• Normal atom

• Ion

• Isotope

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

How many valence electrons ae in the element Carbon?

• 2 electrons

• 6 electrons

• 4 electrons

• None of the above

Ionic bonds form between two ions that have...

• ionic compounds
• negative charges
• positive charges
• opposite charges

Which is most likely to form a negative ion...

• an element from Group 7

• a metal
• an element from Group 1
• an element with atoms that have eight valence electrons

When an atom loses a valence electron, it becomes a(n) _________ion.

• positive 
• negative

Why do ionic bonds form?

• so the number of protons equals the number of electrons

• to fill the outermost energy level to make the atom stable

• so an atom can become unstable

if NONMETALS are more likely to GAIN electrons, they will form ...

• anions

• neutral atoms

• cations