Front

Which subatomic particle is negative?

Back

Electrons

Front

H2O is an element or a compound?

Back

Compound

Front

How many Hydrogen atoms are in 4H2O?

Back

8

Front

What was special about Mendeleev's Periodic Table?

Back

He left blanks for elements that would be discovered in the future.

Front

How many atoms are in the formula Zn(NO3)2?

Back

9

Front

What is the atomic number of Hydrogen?

Back

1

Front

What is the symbol for Gold?

Back

Au

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

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 chemically bonded.

Front

What does the periodic table organize?

Back

Elements based on their atomic number, electron configuration, and recurring chemical properties.