Atoms, Ions, & Static Electricity Review

The atomic number is

• The number of protons in an atom

• A positively charged ion

• A negatively charged ion

• The number of protons and the number of neutrons in an atom

Atomic mass is

• The smallest piece of an element

• The number of protons and the number of neutrons in an atom

• A negatively charged ion

What is the difference between a cation and an anion?

• A cation is positive and an anion is negative

• An anion is neutral and a cation is positive

• They are both neutral

True or False:

Static electricity is produced by the buildup of electrons on the surface of an object

• True

• False

Tags

NGSS.MS-PS2-5

What is an ion?

• A atom that gains or loses one or more electrons

• The umber of protons in an atom

• The smallest piece of an element that still has the properties of that element

True or False:

An atom is the smallest piece of an element that still has the properties of that element

• True

• False

Neutrons are particles that do not have a charge and are found in the (a)   .

What will 2 positively charged objects do?

• Repel or push away from each other

• Attract or move towards each other

What will 2 negatively charged objects do?

• Repel or push away from each other

• Attract or move towards each other

Tags

NGSS.MS-PS2-3

What will 1 positive and 1 negative charge do?

• Repel or push away from each other

• Attract or move towards each other

Tags

NGSS.MS-PS2-3