The Periodic table

How is each element represented in the Periodic Table?

• Each element is listed in its own box based on when it was discovered.

• Each element is represented by a one or two-letter symbol

• Each element is in an order based on alphabetical order.

• Each element is listed as an abbreviation of the first letters of its name

What does the atomic number represent?

• The number of electrons orbiting the nucleus.

• The number of protons in the atom's nucleus.

• The number of protons and neutrons in the nucleus.

• The number of neutrons in the nucleus.

An atom of Oxygen has a mass number of 16 and an atomic number of 8. How many protons does it have?

• 6

• 16

• 8

• 7

Which of the following elements is an alkali metal?

• calcium

• magnesium

• mercury

• sodium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Each column of the periodic table is

• an element.

• a group.

• an isotope.

• a period.

Elements in an elemental family have similar

• atomic symbols.

• atomic sizes.

• atomic weights.

• chemical properties.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The order of elements in the modern periodic table is based on an element's

• atomic number.

• name.

• chemical symbol.

• atomic mass.

Groups on the periodic table are arranged...

• Vertically

• Horizontally

• Diagonally from bottom right corner

• Diagonally from top right corner

What is the chemical symbol for Sodium?

• S

• So

• Na

• Ca

How many periods are there in the periodic table?

• 7

• 9

• 10

• 18

Tags

NGSS.HS-PS1-1