CH. 2 Properties of Atoms and the Periodic Table

Which is the subatomic particle with a positive charge?

• electron

• neutron

• proton

• atom

An atom's nucleus has a ________ charge.

• positive

• nedative

• neutral

Which subatomic particle(s) is found in the nucleus?

• electron

• proton

• neutron

B refers to the

(a)  

Tags

NGSS.MS-PS1-1

Why can't atoms touch?

• They don't like each other.

• The negative electrons attract each other.

• The negative electrons repel each other.

• The positive electrons attract each other.

• The positive electrons repel each other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What do like charges do?

• Attract each other

• Repel each other

Tags

NGSS.MS-PS2-3

This model of the atom is referred to as the (a)   Model.

Tags

NGSS.MS-PS1-1

Which atomic model is a solid sphere?

• Democritus

• Thomson

• Rutherford

• Bohr

• Electron Cloud

Which atomic model shows negatively charged electrons embedded in a sphere like chocolate chips in a cookie?

• Democritus

• Thomson

• Rutherford

• Bohr

• Electron Cloud

Atoms are neutral because the number of protons is equal to the number of ______.

• neutrons

• protons

• electrons

• charges