Core 6 (Atoms, Molecules, Elements & Compounds)

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

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Tags

NGSS.MS-PS1-1

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

• negatrons 
• electrons 
• neutrons 
• protons 

The positive particles of an atom are called ___________.

• electrons 
• atoms
• neutrons 
• protons 

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

• nucleus 
• electron cloud
• core 
• center 

These particles orbit around the nucleus of an atom.  What are they called?

• electrons
• protons
• neutrons
• photons

Tags

NGSS.MS-PS1-1

Can a mixture be separated? 

• No
• Yes
• Only sometimes

Tags

NGSS.MS-PS1-2

What happens to the number of shells as you move down a group?

• They decrease by 1

• They increase by 1

• Nothing

The first energy shell can hold ______ electrons.

• 2

• 8

• 18

Tags

NGSS.MS-PS1-1

All elements in the same row have the same number of shells.

• True

• False

• Sometimes

Rows on the periodic table are called ___________.

• Periods

• Sentences

• Fences