Physical Science Final prep

What is the term used to label the number of protons in the nucleus?

• pi

• atomic number

• number 1 teacher

• mass number

The number of ____________ is found by subtracting the atomic number from the mass number.

• electrons

• neutrons

• protons

• dioxyribonucleic acid

What are the gray particles in the image of an atom?

• dust

• protons

• neutrons

• electrons

Tags

NGSS.HS-PS1-8

What are the red particles in the image of an atom? (There are the same number of red as gray)

• dust

• protons

• neutrons

• electrons

Tags

NGSS.HS-PS1-8

What are the blue particles in the image of the atom? (there are more blue than gray)

• dust

• protons

• neutrons

• electrons

Tags

NGSS.HS-PS1-8

The charge of an electron is?

• positive

• negative

• neutral

Tags

NGSS.HS-PS2-4

Where is the electron located?

• nucleus

• random locations outside the nucleus

• energy shells

• at any location in the atom including nucleus and all the shells

The valence electrons are found in the _______ shell?

• inner

• outer

Tags

NGSS.HS-PS1-1

What is the overall charge of a nucleus?

• positive

• negative

• neutral

• all of these

Tags

NGSS.HS-PS1-8

How many protons in strontium?

• 38

• 88

• 50

Tags

NGSS.HS-PS1-1