Physical Science Midterm 2021

The positive particle in an atom.

• proton

• neutron

• electron

• electron cloud

How many protons does Nitrogen have?

• 7

• 8

• 14

• 14.01

Tags

NGSS.HS-PS1-1

Which of the labeled structures is a neutron?

• a

• b

• c

The negative particle in an atom.

• proton

• neutron

• electron

What is the mass number of this element?

• 7

• 8

• 14

• 14.01

Which of the labeled structures is an electron?

• a

• b

• c

If an element has an atomic number of 11 and a mass number of 23, how many neutrons does it have?

• 11

• 12

• 23

• 34

The neutral particle in an atom.

• proton

• neutron

• electron

Which of the following particles is NOT found in an atom's nucleus?

• proton

• neutron

• electron

Tags

NGSS.HS-PS1-8

An element has 17 protons and 18 neutrons in the nucleus. What is the element's mass number?

• 17

• 18

• 1

• 35