M3 L 34

​Module 3 Lesson 3 + 4

By Lindsay Comer

Multiple Choice

Which subatomic particle determines what element an atom is?

• proton

• neutron

• electron

• nucleus

Multiple Choice

Isotopes have a different number of _____.

• protons

• electrons

• neutrons

• nuclei

Multiple Choice

Isotopes of the same element have different

• atomic numbers

• chemical properties

• mass numbers

• element symbols

Open Ended

Why did chemists come up with the amu?

Multiple Select

Which particle(s) contribute to mass number? More than one may be correct.

• protons

• neutrons

• electrons

Open Ended

What is the mass number for Oxygen-16?

​Symbol

• Copper-63

  • Mass number is 63

• Copper-65

  • Mass Number is 65
    

Name

Isotope Notation

Mass # = 63
Atomic # = 29
(Cu-63)

Mass # = 65
Atomic # = 29
(Cu-65)

Poll

Are all isotopes of every element found in equal parts? Ex: 4 isotopes each found at an abundance of25%

• Yes

• No

Multiple Choice

Which is NOT one of the types of radiation?

• Alpha

• Sigma

• Beta

• Gamma

Multiple Choice

Which best describes an alpha particle?

• An electron with a 1- charge

• Two protons and two neutrons with a net 2+ charge

• A high energy radiation with no mass and no charge

• A neutron with 0 charge

Multiple Choice

Which best describes a beta particle?

• An electron with a 1- charge

• Two protons and two neutrons with a net 2+ charge

• A high energy radiation with no mass and no charge

• A neutron with 0 charge

Multiple Choice

Which best describes a gamma ray?

• An electron with a 1- charge

• Two protons and two neutrons with a net 2+ charge

• A high energy radiation with no mass and no charge

• A neutron with 0 charge

Types of Radiation

Types of Radiation