Chemistry 1 Semester 1 Review

In what state of matter are the atoms moving the slowest?

• Solid

• Liquid

• Gas

• Plasma

What element is Cl

• Chlorine

• Cleaner

• Cleaon

• Sodium

What is the symbol for Hydrogen?

• Hy

• He

• H

• N

What type of charge does a proton have?

• negative

• postive

• no charge/neutral

What type of charge does an electron have?

• positive

• no charge/neutral

• negative

What two sub-atomic particles belong in the nucleus of an atom?

• electrons and protons

• protons and neutrons

• electrons and neutrons

What type of charge does a neutron have?

• negative

• positive

• no charge/neutral

All matter is made of what...

• energy

• atoms

• electrons

• compounds

Beryllium has how many protons?

• 4
• 9.0122
• 2
• 13.0122

What is the average atomic mass of sodium (Na)?

• 11 g/mol

• 23 g/mol

• 1 g/mol

• 3 g/mol