Final Exam Prep S22: 2.1.A.1 Isotopes

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Tags

NGSS.HS-PS1-8

An atom has 12 protons and 13 neutrons in its nucleus. Which is the correct symbol?

• 
• 
• 
• 

What does it happen to this atom?

• It LOSES electrons

• It GAINS electrons

• It GAINS protons

• It LOSES protons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the correct isotope for the following ion: Protons = 20; Neutrons = 21; Electrons = 18

• 
• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

Determine the number of electrons:

• 79

• 119

• 198

• 76

• 82

Tags

NGSS.HS-PS1-1

Fluorine has an atomic number of 9. What can you conclude about an atom of fluorine from this fact?

• it has 9 protons
• it weighs 9 grams
• it has 9 electron shells
• it has a boiling point of 9 degree celsius

Tags

NGSS.HS-PS1-1

Since atoms are very small, what can you infer about atomic mass units?

• one atomic mass unit is equivalent to a gram
• one atomic mass unit is much lighter than a gram
• one atomic mass unit is much heavier than a gram
• atomic mass units and grams measure different properties

If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, its atomic mass is:

• 16
• 32
• 48
• 64

Tags

NGSS.MS-PS1-1

What do carbon-12 and carbon-14 have in common?

• they have same number of protons
• they have the same number of neutrons
• they have the same atomic mass
• they have the same atomic weight

How is carbon-12 different from carbon-14?

• They have a different number of protons
• they have a different number of electrons
• they have a different number of neutrons
• they are different elements