Unit 5: Periodic Table - 7th Grade 2024

Front

What is a chemical symbol?

Back

1 of 2 letters that represent an element.

Front

How many sodium (Na) atoms are in 6Na2Cl?

Back

12

Tags

NGSS.MS-PS1-1

Front

What is the chemical symbol for Silicon?

Back

Si

Front

What is an elemental molecule?

Back

A molecule that consists of two or more atoms of the same element bonded together.

Tags

NGSS.MS-PS1-1

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What does the periodic table represent?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms.