Atoms, Ions and Ionic Compounds

How many valence electrons does a bromine atom have?

• 1
• 2
• 6
• 7

Tags

NGSS.MS-PS1-1

The positive particle in an atom.

• proton

• neutron

• electron

• electron cloud

Tags

NGSS.MS-PS1-1

How many protons does Nitrogen have?

• 7

• 8

• 14

• 14.01

Tags

NGSS.MS-PS1-1

Which of the labeled structures is a neutron?

• a

• b

• c

Tags

NGSS.MS-PS1-1

The negative particle in an atom.

• proton

• neutron

• electron

The neutral particle in an atom.

• proton

• neutron

• electron

An element has 17 protons and 18 neutrons in the nucleus. What is the element's mass number?

• 17

• 18

• 1

• 35

Tags

NGSS.MS-PS1-1

What is the chemical symbol of this element?

• 79

• Au

• AU

• gold

Tags

NGSS.MS-PS1-1

An atom with atomic number 6 would have how many protons?

• 6
• 12
• 3
• Cannot be determined 

Tags

NGSS.MS-PS1-1

An atoms overall charge is _____.

• Positive 
• Depends on its mood 
• Neutral 
• Negative 

Tags

NGSS.MS-PS2-3