ATOMIC THEORY TEST

The center of the atom is the

• nucleus

• proton

• neutron

• electron

Tags

NGSS.HS-PS1-8

The part of the atom that has a positive charge is the

• molecule

• neutron

• proton

• electron

The neutron has this sort of charge.

• positive

• negative

• alternates, positive and then negative

• no charge

Negatively charged particles that move around the atom's nucleus are the

• elements

• compounds

• electrons

• protons

Atoms that have the same number of protons but different numbers of neutrons are called

• protons

• electrons

• litmus

• isotopes

The total number of the protons and neutrons is the

• charge

• potential

• mass number

• atomic weight

The smallest particle of an element to still be that element is the

• nucleus

• electron

• atom

• neutron

Tags

NGSS.MS-PS1-1

Dalton believed the atom to be

• a solid sphere

• composed of more than one element

• composed of positive and negative particles

• composed of alpha particles

Rutherford's “gold foil” experiment led him to hypothesize the

• atom

• electron

• nucleus

• neutron

Smallest example of an element, which still hold the properties of that element

• molecule

• atom

• compound

• proton