Chemical Formulas and Counting Atoms

Front

What group on the periodic table would you find Oxygen?

Back

Oxygen is found in Group 16 of the periodic table.

Front

How would you describe the overall charge of the nucleus in the atomic model?

Back

The overall charge of the nucleus is positive, specifically +9.

Front

How many atoms of each element are in the chemical formula CH₄COOH₂?

Back

There are 2 Carbon atoms, 6 Hydrogen atoms, and 2 Oxygen atoms.

Front

How many total atoms do you have for each element in the chemical formula P₂OOH₂O₂H₆?

Back

P = 2, O = 4, H = 8.

Front

What Period would the atom in the periodic table be in if it has an atomic number of 10?

Back

The atom would be in Period 2.

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the number and type of atoms in a molecule using symbols and numbers.

Front

What does the subscript in a chemical formula indicate?

Back

The subscript indicates the number of atoms of the element in the molecule.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number and properties, helping to predict their behavior.

Front

How do you determine the number of total atoms in a chemical formula?

Back

Add the subscripts of all elements in the formula to find the total number of atoms.