Ions and Counting atoms

Front

What is the molecular formula for glucose?

Back

C6H12O6

Tags

NGSS.MS-PS1-1

Front

How many total atoms are in one molecule of C6H12O6?

Back

24

Tags

NGSS.MS-PS1-1

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

How many valence electrons does a carbon atom have?

Back

4

Front

What is the charge of a sodium ion (Na+) after losing one electron?

Back

+1

Front

What is the charge of a magnesium ion (Mg2+) after losing two electrons?

Back

+2

Front

What is the charge on a sulfate ion (SO4^2-)?

Back

-2

Front

How many elements are in the compound Mg2As3COHNi2?

Back

6

Tags

NGSS.MS-PS1-1

Front

What is the significance of the subscript in a chemical formula?

Back

Subscripts indicate the number of atoms of each element in a molecule.

Tags

NGSS.MS-PS1-1

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Tags

NGSS.MS-PS1-5