Unit 1 Matter Atoms Isotopes and Ions

What charge does an atom have when it GAINS electrons?

• Positive

• Negative

• Neutral

What is the charge on a lithium atom that loses 1 electron?

• Positive

• Negative

An isotope is a variation of a an atom where the number of ______________ have changed.

• Electrons

• Protons

• Neutrons

An ion is a variation of an atom where the number of ________________ has changed.

• Electrons

• Protons

• Neutrons

An ion of an atom will have ____________________.

• A different mass than the neutral atom.

• The same different mass as the neutral atom.

• A different charge than the neutral atom.

• The same charge as the neutral atom.

If an atom has a charge of 0 (neutral) and an atomic number of 8 it should have ____ electrons.

• 0

• 8

• 7

• 9

An atom with the same number of protons and electrons (no charge) and the expected atomic mass or number of neutrons from the periodic table.

• Neutral/Normal Atom

• Ion

• Isotope

An ion has 8 protons (+) and 5 electrons (-). What is its charge? 

• +13
• +3
• -3
• -13

Valence electrons are: 

• Electrons located in the outermost orbital 
• Electrons located in the innermost orbital
• Electrons that are bonded to another atom
• Electrons that in the second orbital

How many valence electrons does an atom of carbon (6) have? 

• 1
• 2
• 3
• 4