Atoms

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Tags

NGSS.MS-PS1-1

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

• nucleus

• electron cloud

• core

• center

True or False? Neutrons have a negative charge

• True
• False

Tags

NGSS.HS-PS1-8

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

• Proton
• Neutron
• Electron
• Quark

Tags

NGSS.MS-PS1-1

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Tags

NGSS.MS-PS1-1

The first energy level can hold up to how many electrons?

• 8
• 4
• 2
• 5

Tags

NGSS.MS-PS1-1

What is the atomic symbol for sodium?

• Na
• So
• NaCl
• S

What does the nucleus consist of?

• Protons + Electrons
• Neutrons + Electrons
• Atoms
• Protons + Neutrons

Tags

NGSS.MS-PS1-1

If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?

• 10
• 20
• 30

Tags

CCSS.8.EE.A.3

Everything is made up of little tiny things called _____

• compounds
• molecules
• atoms
• solids

Tags

NGSS.MS-PS1-1