Atoms and Atomic Structure

TRUE OR FALSE:

All matter is made of atoms

• True

• False

Tags

NGSS.MS-PS1-1

Which subatomic particle has a positive charge?

• Protons

• Neutrons

• Electrons

The nucleus of an atom is made of what subatomic particle(s)?

• Protons

• Neutrons

• Electrons

Which subatomic particle floats around/outside the nucleus?

• Protons

• Neutrons

• Electrons

How many protons, neutrons, and electrons does sulfur have? It's atomic number is 16 and it's atomic mass is 32.

• 16 protons, 16 neutrons, and 16 electrons

• 16 protons, 32 neutrons, and 16 electrons

• 16 protons, 16 neutrons, and 32 electrons

• 32 protons, 16 neutrons, and 16 electrons.

Tags

NGSS.MS-PS1-1

What is the mass number of the element nitrogen? It has 7 protons, 7 neutrons, and 7 electrons.

• 7

• 14

• 21

Tags

NGSS.MS-PS1-1

Silicon has a mass number of 28 and an atomic number of 14. How many protons does it have?

• 28

• 14

• 42

• 7

Tags

NGSS.MS-PS1-1

The atomic number tells us how many _____ there are in the atom.

• Protons

• Neutrons

How many protons are in an atom with an atomic number of 12?

• 12

• 24

• 6

• 13

What is the atomic number of an element with eight protons?

• 8

• 16

• 4

• 10