Atoms, the periodic table, chemical reactions, and classification of matter

Particle of the nucleus that does not have a charge

• proton
• electron
• neutron

Particle of the nucleus that has a positive charge

• proton
• neutron
• electron

The chemical formula for methane gas is CH4. How many atoms of carbon are in one molecule of methane?

• 1

• 4

• 5

• 8

Tags

NGSS.MS-PS1-1

This indicates the number of protons in the nucleus of an atom

• atomic mass
• atomic number
• valence

This indicates the sum of the protons and neutrons in the nucleus of an atom

• atomic number
• atomic mass
• valence

The path that electrons follow around the nucleus of an atom

• ion
• valence electrons
• orbit or "shell"

How many protons does an atom of carbon contain?

• 12
• 6
• 0

Tags

NGSS.MS-PS1-1

How many neutrons does an atom of Beryllium have?

• 5

• 6

• 11

Tags

NGSS.MS-PS1-1

How are elements and compounds similar?

• they are both pure substances

• they are both broken down by physical changes

• they are both made up of different kinds of atoms

• they are both listed on the periodic table

How many neutrons does an aluminum atom have?

• 14
• 13
• 27

Tags

NGSS.MS-PS1-1