Periodic Table Basics

Front

What does the term 'period' refer to in the periodic table?

Back

The 'period' indicates the number of energy shells an element has.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of groups in the periodic table?

Back

Groups are vertical columns in the periodic table that contain elements with similar chemical properties.

Front

What element is found in group 9, period 4 of the periodic table?

Back

Cobalt.

Front

What is the atomic number of Neon?

Back

10.

Front

Which two elements are in the same period: K - Potassium and Na - Sodium or B - Boron and C - Carbon?

Back

B - Boron and C - Carbon are in the same period.

Front

What is the element symbol for Sodium?

Back

Na.

Front

How many periods are there in the periodic table?

Back

There are 7 periods in the periodic table.

Front

What is the general trend of atomic size in the periodic table?

Back

Atomic size increases down a group and decreases across a period from left to right.

Front

What is the difference between metals and nonmetals in the periodic table?

Back

Metals are typically shiny, conductive, and malleable, while nonmetals are dull, insulative, and brittle.