Atoms and Elements

What is the smallest piece of matter?

• atom

• molecule

• proton

• neutron

Tags

NGSS.MS-PS1-1

What is a proton?

• positively charged particle

• negatively charged particle

• neutral partical

• number of protons and neutrons in the nucleus

What is the atomic number of an element?

• number of electrons

• number of protons

• number of neutrons

• number of protons and neutrons

What is the atomic mass?

• the smallest unit of matter

• number of protons and neutrons

• number of protons

• average total of all protons and neutrons in the nucleus

Tags

NGSS.MS-PS1-5

What is the mass number?

• number of neutrons

• sum of protons and neutrons in the nucleus of an atom

• sum of protons and electrons in the nucleus of an atom

• number of protons

What is an example of an element?

• Proton

• Mass number

• Helium

• Chemistry

What is an electron?

• positively charged particle

• neutral particle

• negatively charged particle

• nucleus of the atom

Write a hypothesis for "How does the number of protons affect the atomic mass?"

If the atomic mass is 16 and the number of protons is 8. How many neutrons are there?

• 16

• 14

• 8

• 4

Tags

NGSS.MS-PS1-1

What are some elements we see in everyday life?