Atomic Mass

What is the atomic mass?

• The average mass of all the isotopes of an element.

• The number of protons in an atom.

• The number of neutrons in an atom.

• The total number of protons and neutrons in an atom.

Based on the diagram, how many protons and neutrons are present in the atom?

Tags

NGSS.MS-PS1-1

What is the periodic table?

• A chart showing all of the elements arranged according to the repeating pattern of their properties.

• A list of chemical reactions.

• A guide to chemical safety procedures.

• A collection of scientific laws.

Tags

NGSS.MS-PS1-1

Which element is represented by the symbol 'H' in the periodic table?

• Hydrogen

• Helium

• Oxygen

• Carbon

What is the symbol for Helium in the periodic table?

• He

• H

• Li

• Be

Which group in the periodic table contains the noble gases?

• Group 18

• Group 1

• Group 2

• Group 17

What is the atomic number of Carbon?

• 6

• 8

• 12

• 14

Tags

NGSS.MS-PS1-1

What is a chemical symbol?

• A one or two letter abbreviation for a chemical element.

• A type of chemical reaction.

• A chemical formula for a compound.

• A unit of measurement in chemistry.

Tags

NGSS.MS-PS1-1

What is the chemical symbol for Hydrogen?

• H

• He

• O

• N

What are the horizontal rows on the periodic table called?

• Period

• Group

• Column

• Section