Nuclear Chemistry

An isotope is a version of an element with the same number of protons but different number of __________.

Tags

NGSS.HS-PS1-8

Describe the structure of an alpha particle.

• a fast-moving electron

• 2 protons and 2 neutrons

• a slow-moving neutron

• a hydrogen nucleus

Tags

NGSS.HS-PS1-8

What is the relative charge of an alpha particle?

• -1

• 0

• 1

• 2

Tags

NGSS.HS-PS1-8

In alpha decay, the mass number...

• increases by 2

• decreases by 2

• increases by 4

• decreases by 4

Tags

NGSS.HS-PS1-8

In alpha decay, the atomic number...

• increases by 2

• decreases by 2

• increases by 4

• decreases by 4

Tags

NGSS.HS-PS1-8

The mass number of Neptunium (Np) is _____.

Tags

NGSS.HS-PS1-8

The atomic number of Neptunium (Np) is _____.

Tags

NGSS.HS-PS1-8

In beta-plus decay...

• the mass number decreases by 1

• the mass number does not change

• the mass number increases by 1

• the atomic number decreases by 1

• the atomic number increases by 1

Tags

NGSS.HS-PS1-8

The atomic number of Actinium (Ac) is _____.

The atomic number of Carbon (C) is _____.