Basics Chemistry

Negatively charged particles found outside of the nucleus of an atom are called ______.

• protons

• neutrons

• electrons

Positively charged particles found in the nucleus of an atom

• Neutron

• Proton

• Electron

Tags

NGSS.HS-PS1-8

A neutral particle found in the nucleus of an atom

• neutron

• proton

• electron

Tags

NGSS.HS-PS1-8

How many protons are in carbon?

• 12

• 6

• 0

• 7

Tags

NGSS.HS-PS1-1

Identify the equation to calculate the number of neutrons for Nitrogen.

• 7-7=0

• 14.0067-7=7.0067

• 14+7=21

• 14-7=7

Tags

NGSS.MS-PS1-1

Calculate the number of neutrons for potassium.

• 20

• 19

• 39

• 58

Tags

NGSS.MS-PS1-1

Elements are chemically combined substances that can be broken down into simpler substances.

• True

• False

Tags

NGSS.MS-PS1-1

The atomic number of an element is equal to the number of

• protons and electrons

• protons

• electrons

• electrons and neutrons

The number of protons is equal to the number of electrons.

• True

• False

Tags

NGSS.HS-PS1-7

Protons + __________ = atomic mass

• electrons

• neutrons

• neither