Atoms, elements, and the periodic table

What is the atomic number?

• the number of protons in one atom

• the number of protons and neutrons in one atom

• the number of neutrons in one atom

What is the atomic number of this atom?

• 4
• 5
• 9
• none of the above

What is Mass # ?

• Number of Protons in one atom

• Number of Neutrons in one atom

• Number of Protons and Neutrons in one atom

• Number of Protons and Electrons in one atom

If an element has 5 protons and 9 neutrons, what is its mass number?

• 14

• 5

• 9

• 2

How many protons are present in phosphorus-31

• 15
• 16
• 31
• 46

How many neutrons does Lithium (Li) have?

• 8
• 3
• 4
• 5

Cations are...

• Positive
• Negative
• Neutral
• Purring

Anions are...

• Positive
• Negative
• Neutral
• Crying

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Which isotope has 4 neutrons?

• Li-6

• Li-7

• Li-8

• they have the same # of neutrons