Counting Elements and Atoms

Front

The first letter of an element is always ...

Back

a uppercase letter.

Front

How do you count the number of different elements in a compound?

Back

Count the capital letters.

Tags

NGSS.MS-PS1-1

Front

What is the definition of a chemical formula?

Back

Represents a molecule and uses symbols to show the number of atoms in each element.

Tags

NGSS.MS-PS1-1

Front

How many Sodium (Na) are in 6NaCl?

Back

6

Tags

NGSS.MS-PS1-1

Front

What is a coefficient?

Back

The large number to the left of a formula.

Front

What does a subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Tags

NGSS.MS-PS1-1

Front

What is the chemical symbol for Oxygen?

Back

O

Front

What does the term 'element' refer to in chemistry?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Tags

NGSS.MS-PS1-1

Front

How many different elements are in the compound H2O?

Back

2 (Hydrogen and Oxygen).

Tags

NGSS.MS-PS1-1