Chemistry

All matter is made up of

• atoms

• subatomic particles

• atomic units of mass

How many protons does Nitrogen have?

• 14

• 7

• 2

• 0

protons are ___ charged and found in _____

• negative

  nucleus

• positive

  nucleus

• negative

  electron shell

• positive

  electron shell

the atomic number is the SAME as the number of

• electrons

• protons

• neutrons

Electrons are ___ charged and found ____

• positive

  nucleus

• negative

  nucleus

• positive

  outer shell

• negative

  outer shell

Which two subatomic particles have a mass of 1 amu?

• protons

  electrons

• protons

  neutrons

• electrons

  neutrons

which subatomic particle has a VERY small mass?

• proton

• neutron

• electron

The number of protons is the same as the number of ______

• electrons

• neutrons

What is the number of electrons?

• 82

• 207

• 207-82

• 0

protons = electrons = _____

• neutrons

• atomic number

• mass number