Grade 9 Chemistry

A negative ion is called

• cation
• anion
• cathode
• electro

Postive ions are called

• anions
• positrons
• alpha 
• cations

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

Tags

NGSS.HS-PS1-8

The smallest particle of any particular type of matter is known by which of the following terms?

• Compound
• Atom
• Chemical
• Element

Tags

NGSS.MS-PS1-1

The apple has a mass of 24 grams is an example of a

• quantitative observation

• qualitative observation

If a neutral atom has 3 electrons, how many protons does it have?

• 1

• 2

• 4

• 3

If the number of protons equal the number of _____, the atom will have no charge

• protons
• neutrons
• electrons
• nucleus

Tags

NGSS.MS-PS1-1

The basketball player is 6'9".

• qualitative observation.

• quantitative observation

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

What is the atomic mass?

• the number of protons

• the number of protons and neutrons

• the number of neutrons

• the number of protons and electrons