Atoms

An atom with atomic number 6 would have how many protons?

• 6

• 12

• 3

• cannot be determined 

Elements can have the same number of protons?

• True

• False

a neutrally charged subatomic particle located in the nucleus of an atom that contributes to the mass of an atom

• neutron

• electron

• nucleus

• proton

the tiny, very dense, positively charged region in the center of an atom; made up of protons and neutrons

• proton

• nucleus

• electron

• neutron

the smallest particle of an element; made of electrons, protons, and neutrons

• atom

• proton

• neutron

• electron

the area surrounding the nucleus of an atom where the electrons are found

• proton

• electron cloud

• electrical charge

• nucleus

a positively charged subatomic particle located in the nucleus of an atom; contributes to the mass of the atom

• atom

• electron

• proton

• neutron

A conceptual model of the atom in which a small positively, charged nucleus is
surrounded by planetary electrons

• conservation of mas

• law of constant proportions

• law of multiple proportions

• nuclear model of the atom

Particles that are smaller than the atom

• atomic mass

• subatomic particles

• electron cloud

• atom

The mass of an atom, approximately equal to the number of protons and neutrons in the atom

• subatomic particles

• atomic mass

• chemical formula

• electron cloud