Unit 3 Part 1

The smallest particle of an element that has properties of the element.

• atom

• compound

• proton

• neutron

Protons and neutrons are in the _________________ of the atom.

• nucleus

• electron cloud

• space

• outside

Where are electrons found the atom?

• electron cloud

• nucleus

• center

• outside

Changing the number of protons changes the entire _________________.

• element

• compound

• mixture

• solution

Select the subatomic particle that has a mass of 1 AMU.

Tags

NGSS.MS-PS1-1

This illustration is a/an _____________

• compound

• element

• mixture of elements

• mixture of elements and compounds

Tags

NGSS.MS-PS1-1

In a neutral atom, the number of protons = the number of _________________.

• electrons

• neutrons

• quarks

• protons

The same element with a different number of neutrons is a(n) ....

• isotope

• radioactive atom

• proton

• electron

From this element key of Nitrogen, determine the atomic mass of nitrogen

• 7

• 7.01

• 14.01

• 21.01

Tags

NGSS.MS-PS1-1

Identify from the picture the atomic #

• 2

• 4

• 4.003

• 3

Tags

NGSS.MS-PS1-1