9th Grade Physical Science Mid-Term

Front

What is the chemical symbol for Sodium?

Back

Na

Front

What type of matter consists of two or more substances that are chemically combined?

Back

Compounds

Tags

NGSS.MS-PS1-5

Front

What is the correct chemical formula for nitrogen (I) oxide?

Back

N2O

Tags

NGSS.MS-PS1-1

Front

What does the atomic number represent in an element?

Back

The number of protons in the nucleus of an atom.

Front

What type of bond occurs when atoms share electrons?

Back

Covalent bond.

Front

What is the chemical symbol for Potassium?

Back

K

Front

What is the difference between an element and a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is the chemical formula for water?

Back

H2O

Tags

NGSS.MS-PS1-1

Front

What is an ionic bond?

Back

A chemical bond formed between two ions with opposite charges.

Tags

NGSS.HS-PS1-1

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.