Periodic Table Basics

Front

Rows on the periodic table are called ___________.

Back

Periods

Front

What is a neutron?

Back

A small particle in the nucleus of the atom, with no electrical charge.

Front

In the periodic table, similar elements are arranged in vertical columns called ___________.

Back

Groups

Front

In what direction are groups arranged in the periodic table?

Back

Up and down.

Front

Each column in the periodic table is called a _________.

Back

Group

Front

Who developed the first periodic table in 1869?

Back

Dmitri Mendeleev

Front

What are the major groups in the periodic table?

Back

Group 1: alkali metals; Group 2: alkaline earth metals; Group 17: halogens; Group 18: noble gases.

Front

What is the modern periodic table organized by?

Back

Atomic number.

Front

What is the charge of a proton?

Back

Positive charge.

Front

What is the charge of an electron?

Back

Negative charge.