23-24 Unit 1 Review

Which of the following make up parts of an atom?

• neutron

• proton

• electron

• ultron

Tags

NGSS.MS-PS1-1

Which of the following parts of an atom are positively charged?

• neutron

• proton

• electron

• nucleus

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

This is how you find the number of neutrons in an atom. 

• Subtract the atomic number from the atomic mass
• Subtract the atomic mass from the atomic number 
• Add the atomic mass to the atomic number 
• Divide the atomic mass by the atomic number 

How many protons does indium have?

• 49

• 66

• 114

• 115

What is the atomic mass of barium

• 56

• 82

• 137

• 138

How many neutrons does platinum have?

• 78

• 117

• 195

• 196

Tags

NGSS.MS-PS1-1

If an atom has 3 electrons, how many protons does it have?

• 1
• 2
• 4
• 3

Which is an electron?

• A
• B
• C

Tags

NGSS.MS-PS1-1