Atoms

The positively charged particle in an atom.

• Proton

• Neutron

• Electron

• Nucleus

Tags

NGSS.MS-PS1-1

Describes what an atom looks like

• Atomic Number

• Mass Number

• Electron Cloud

• Atomic Theory

Tags

NGSS.MS-PS1-1

The total number of protons and neutrons in the nucleus of an atom

• Atomic Number

• Mass Number

• Atomic Theory

• Electron Cloud

The center of an atom where its neutrons and protons are is called the _____________.

• nucleus

• electron cloud

• center

Tags

NGSS.MS-PS1-1

Atoms are made up of ________________

• energy

• electrons

• subatomic particles

• gasses

Tags

NGSS.MS-PS1-1

The following subatomic particles are in the nucleus.

• Protons and nucleus.

• Protons and neutrons.

• Protons and electrons

• Neutrons and electrons

Tags

NGSS.MS-PS1-1

The mass number of an atom is the mass of ______ + _____

• protons + neutrons

• protons + electrons

• neutrons + nucleus

• protons + nucleus

Tags

NGSS.MS-PS1-1

The mass number is always larger than the atomic number (exept for Hydrogen).

• TRUE

• FALSE

Tags

NGSS.MS-PS1-1

The separate atoms that make up a wooden table cannot be seen because the atoms are

• too small

• moving too fast

• packed lightly together

• hidden beneath the surface

Tags

NGSS.MS-PS1-1

Atoms bond together in different ways to make ________________.

• Substances

• Matter

• Molecules

Tags

NGSS.MS-PS1-1