Atoms & Subatomic Particles

Label the parts of the atom.

The subatomic particle labeled "a" is the ​ ​ (a)  

The subatomic particle labeled "b" is the ​ (b)  

The subatomic particle labeled "c" is the ​ (c)   .

​

• electron
• neutron
• proton

Tags

NGSS.MS-PS1-1

The smallest unit of matter; the building blocks of molecules.

• mass

• atom

• element

• compound

Tags

NGSS.MS-PS1-1

The positively charged central core of an atom that contains nearly all the atom's mass is the

• nebula

• epicenter

• nucleus

• heart

These will determine what element an atom is. 

• number of neutrons
• number of electrons
• number of atoms 
• number of protons 

Tags

NGSS.MS-PS1-1

What mass does a neutron have?

• 1 amu

• 0 amu

• -1 amu

• +2 amu

Tags

NGSS.HS-PS1-8

Which statement best describes the nucleus of an atom?

• It is a centrally located structure comprising almost all of the atomic mass and having an overall neutral charge

• It is a centrally located structure comprising almost none of the atomic mass and having an overall positive charge

• It is located in the electron cloud, comprises almost all of the atomic mass, and has a positive charge

• It is a centrally located structure comprising almost all of the atomic mass and having an overall positive charge

Tags

NGSS.HS-PS1-8

If an atom has 12 protons, 13 neutrons, and 12 electrons, what is the charge of the nucleus?

• +12

• -13

• -12

• +13

Atoms of the same element must always have the same number of _________

• electrons
• neutrons
• isotopes
• protons

Tags

NGSS.HS-PS1-7

True or False? Neutrons have a negative charge

• True
• False

All matter is made of 

• energy 
• atoms 
• air
• chemistry

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5