Atomic Structure practice

Protons are found inside the nucleus with a ____________ charge.

• positive

• negative

• neutral

The particle found outside the nucleus with a negative charge is the _________.

• proton

• neutron

• electron

Which atom has an atomic number of 55?

Tags

NGSS.HS-PS1-1

What is the atomic mass of Boron(B)?

What is the mass number of the following?

⁷³ Ge

³²

What is the mass number of the following?

Tin-119

What is the mass number of an atom that has 30 protons and 34 neutrons?

• 65.39

• 64

• 30

• 34

Tags

NGSS.MS-PS1-1

How many electrons does this ion have P^-3?

• 15

• 12

• 18

• 31

Tags

NGSS.HS-PS1-1

What is the atomic number of the following?

Oxygen-16

An atom that has the same number of protons but different number of neutrons is a(n) ______________.

• ion

• isotope

• anion

• cation

Tags

NGSS.HS-PS1-8