3rd quarter exam grade 9 II

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

What is atomic number?

• Number of protons in an atoms 
• Number of neutrons in an atom
• Mass of an atom
• Charge on an atom

Which subatomic particles are found in the nucleus of an atom?

• Protons and Electrons
• Protons and Neutrons
• Neutrons and Electrons
• Protons, Neutrons and Electrons

Tags

NGSS.MS-PS1-1

The total number of protons and neutrons in an atom is called the...

• Atomic number
• Proton number
• Mass number
• Weight number

Atoms of the same element must always have the same number of _________

• electrons
• neutrons
• isotopes
• protons

Tags

NGSS.HS-PS1-7

The _________ of an element equals the number of protons in an atom of that element

• mass number
• atomic weight
• atomic number
• isotopes

Tags

NGSS.HS-PS1-7

The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.

• mass number
• atomic number 
• atomic weuight
• isotope weight

Tags

NGSS.HS-PS1-8

What subatomic particles would you find in the nucleus of an atom?

• Protons only
• Protons and Neutrons
• Neutrons and Electrons
• Protons and Electrons 

Protons and Electrons balance the charge of an atom.

• True
• False

Tags

NGSS.HS-PS1-7

_____________________ are responsible for bonding.

• Neutrons

• Protons

• Electrons

• Valence electrons