JML Atoms and Elements Review

Front

What is the atomic weight/mass for Sodium (Na)?

Back

23

Front

What is the element symbol for Potassium?

Back

K

Front

An element's identity is determined by the number of __________.

Back

protons

Front

What is the atomic number of Nickel (Ni)?

Back

28

Front

One or two letter abbreviation used to represent an element is called a(n) __________.

Back

chemical symbol

Front

What is the atomic number of Sodium (Na)?

Back

11

Front

What is the definition of an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the difference between protons and neutrons?

Back

Protons are positively charged particles in the nucleus, while neutrons have no charge.

Front

What is the periodic table?

Back

A table that organizes all known elements by their atomic number and properties.

Front

What does the atomic number represent?

Back

The number of protons in an atom's nucleus.