Atoms Periodic Table Bonds

All matter is made of 

• energy 
• atoms 
• air
• chemistry

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• electrons 
• atoms
• neutrons 
• protons 

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

• nucleus 
• electron cloud
• core 
• center 

Neutrons are

• negative

• positive

• neutral

• charged

Electrons are

• negative and in the nucleus

• positive and at the edge of the atom

• not in an atom

• negative and at the edge of the atom

Tags

NGSS.MS-PS1-1

Most of the atom is filled with

• electrons
• empty space
• the nucleus
• protons

How many protons are in the element, Sodium, with an atomic number of 11?

• 23
• 11
• 13
• 14

How many electrons are in the element, Oxygen, with the atomic number of 8?

• 7
• 10
• 8
• 9

Most of the mass in an atom is concentrated in the...

• electrons
• nucleus
• protons
• empty space

How many electrons are in the atom "K", Potassium?

• 7

• 2

• 39

• 19