periodic table
This chart contains all the elements found on Earth.
What is the periodic table?
The basic unit of a chemical element.
What is an atom?
This thing has mass and takes up space.
What is matter?
A model that represents valence electrons in an atom as dots around the elements chemical symbol.
What is an electron dot diagram?
This is one of the states of matter with a definite shape and volume.
What is a solid?
Is an outermost electron of an atom that participates in chemical bonding.
What is a valence electron?
This is the amount of space a sample of matter occupies.
What is volume?
Make up most of the matter around you. NHCO3
What is compounds?
This is the amount of matter in an object.
What is mass?
A force that holds two or more atoms together.
What is chemical bond?
This is the mass per unit volume of a substance.
What is density?