Atoms and the Periodic Table

Front

How many electrons does Potassium (K) have?

Back

19

Front

All matter is made of _________.

Back

atoms

Front

What is the atomic mass of Fluorine (F)?

Back

19

Front

In the modern periodic table, elements are arranged by:

Back

atomic number

Front

The amount of matter in an object (like weight) is its...

Back

mass

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that determine its chemical properties.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.