The Atom (characteristics & structure)

What is considered the smallest parts of matter?

• cells

• organs

• atoms

• systems

Tags

NGSS.MS-PS1-1

Atoms are made of....

• neutrons, protons, cells

• electrons, protons, neutrons

• cells, organs, neurons

• protons, nucleus, organs

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Neutrons are positively charged.

• True

• False

The number of protons in the nucleus of an atom is its....

• atomic number

• atomic mass

• element

• molecule

What do you need to determine the atomic mass number of an atom?

• the number of electrons and the number of protons

• the number of neutrons and the number of electrons

• the number of protons and the number of neutrons

Protons are positively charged.

• True

• False

Tags

NGSS.MS-PS2-3

If an atom has twelve electrons, how many protons are in that atom?

• nine

• six

• twelve

• three

Electrons are negatively charged.

• True

• False

Tags

NGSS.MS-PS2-3

What is found in the nucleus of an atom?

• neutrons and protons

• protons and electrons

• neutrons, protons, electrons

Which is found outside the atom's nucleus?

• protons

• neutrons

• electrons