Ions and Electrons (Unit 7) Test

Match it! Select the correct answer from the pull down...Good luck!

If an atom has gained an electron it is called?

The ________________ of an atom is the number of protons an atom possesses.

What charge does an electron have?

How many electrons does an anion of Selenium posses?

What do you call the horizontal rows on the periodic table?

What is the oxidation number (charge) of a selenium ion?

How many electron energy levels (rings) does a sulfur Bohr diagram have?

If an atom has lost an electron(s) it is called?