Intro to Chemistry

All matter is made of what

• energy

• atoms

• electrons

• compounds

Tags

NGSS.MS-PS1-1

The positive particles of an atom are

• electrons

• positrons

• neutrons

• protons

Tags

NGSS.MS-PS1-1

The positive particles of an atom are 

• Electrons 
• Positrons 
• Neutrons 
• Protons 

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

• Nucleus 
• Electron cloud
• Core 
• Center 

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

Why is the overall charge of an atom neutral (0)?

• They have the same number of protons and neutrons.

• They have the same number of protons and electrons.

• They have the same number of electrons and neutrons.

Tags

NGSS.MS-PS1-1

What is the mass number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

Tags

NGSS.HS-PS1-8

What type of bond forms when 2 or more electrons are SHARED?

• Covalent bond
• Incomplete bond
• Ionic bond
• Metallic bond

Tags

NGSS.MS-PS1-1

An ionic bond forms when atoms ___________ electrons.

• gain
• share
• increase
• transfer