Chemistry Q2 Review

Match the following particles to their charge

• neutral

• Eletron

• positive

• Proton

• negative

• Neutron

Tags

NGSS.MS-PS2-3

Match the terms to the correct example

• Anion

• Ca ⁺²

• Neutral atom

• Ge

• Cation

• H ^-

Tags

NGSS.MS-PS1-1

This iron atom has (a)   protons, ​ (b)   neutrons, and ​ (c)   ​ electrons.

• 26
• 30
• 55
• 56
• 82

Tags

NGSS.MS-PS1-1

Which of these pairs of atoms are isotopes?

• oxygen-16

  &

  nitrogen-16

• chlorine-17

  &

  chlorine-18

• F & F^-1

What type of decay is shown here

²³⁸₉₂U ---> ²³⁴₉₀Th + ⁴₂He.

• alpha

• beta

• gamma

Tags

NGSS.HS-PS1-8

The most dangerous type of radiation is the ____. 

• alpha particle
• gamma ray
• beta particle
• uranium

Tags

NGSS.HS-PS1-8

How many oxygen are in this formula?

Cu₃(PO₄)₂

• 2

• 3

• 4

• 8

Match the following descriptions to the correct form of electromagnetic radiation

• Visible light

• The waves we can see

• Infrared

• Used to cook food and in cell phones

• Microwaves

• Produced by the sun & can cause sunburns

• Gamma

• Detected as heat, used in remote controls

• Ultraviolet

• The highest frequency waves, very dangerous to humans

Which wave has the highest frequency?

• A

• B

• C

Tags

NGSS.MS-PS4-1

S orbitals hold a maximum of (a)   electrons, p orbitals hold a maximum of ​ (b)   electrons, d orbitals hold a maximum of ​ (c)   electrons, and f orbitals hold a maximum of ​ (d)   electrons.

• 2
• 6
• 10
• 14
• 8
• 12
• 18