Miller & Levine Chapter 2 Chemistry of Life Keystone Bio Unit A2

The smallest unit of an element that still has the properties of that element

• atom

• electron

• compound

Tags

NGSS.MS-PS1-5

The positive particles of an atom are 

• electrons 

• neutrons 

• protons 

the central region of an atom where its neutrons and protons are is its 

• nucleus 

• electron cloud

• shell

an atom with atomic number 6 would have how many protons 

• 6

• 12

• cannot be determined 

Particles in an atom that are neutral and have no charge are 

• electrons 

• neutrons 

• protons 

What is the atomic number for an element with three protons?

• 6.941

• 3

• 6

A particle that moves around, outside of the nucleus is a(n)...

• Proton

• Neutron

• Electron

Which of the following is a negatively charged subatomic particle?

• Electron

• Proton

• Neutron

The particles that are found in the nucleus of an atom are

• neutrons and electrons

• protons and neutrons

• protons and electrons

A substance formed by the chemical combination of two or more elements in definite proportions

• atom

• element

• compound