Counting Atoms and Elements

If an element symbol has no subscript next to it, then this indicates that there is only ________________ atom of this element in the chemical formula.

• 1

• 3

• 4

• 2

Tags

NGSS.MS-PS1-1

How many elements are in this chemical formula?

NaOH

• 1

• 2

• 3

• 4

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NGSS.MS-PS1-1

The ________________ which are represented by a single uppercase letter, or represented by an uppercase letter followed by a lowercase letter. This tells you the types of elements in the compound.

• metals

• element symbols

• metalloids

• nonmetals

Tags

NGSS.MS-PS1-1

How many elements are in this formula?

HNO₃

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

How many elements are in this formula?

Li₂O

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What does the subscript in a chemical formula tell you?

• How many molecules are present

• How many atoms are present

• How many elements are present

• How many neutrons are present

Tags

NGSS.MS-PS1-1

• 6

• 1

• 12

Tags

NGSS.MS-PS1-1

• 2

• 4

• 3

Tags

NGSS.MS-PS1-1

• 18

• 12

• 25

• 24

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Tags

NGSS.MS-PS1-1