UNIT 2

protons are the same as the

• atomic number

• #of neutrons

• #of electrons

• mass number

mass - pro=

• protons

• electrons

• neutrons

• atomic number

protons\electrons are same if neutral

• true

• fals

protons and neutrons are in the what of the atom

• electrons orbit

• equates

• nucleus

an atom is the smallest part of a chemical element that can exist

• true

• false

the three subatomic particles are

• protons

• neutrons

• electrons

• atoms

protons are positive

• true

• false

the mass of a proton

the mass of a neutron

the mass of a electron