Periodic Table of Elements

In an element box, the number at top is the

• atomic number

• atomic name

• atomic mass

• atomic symbol

Tags

NGSS.MS-PS1-1

The number of neutrons in an atom can be found by

• adding the number of neutrons and protons together.

• adding the atomic mass and the atomic number.

• subtratcting the atomic number from the atomic mass.

• subtracting the atomic mass from the atomic number.

___________________ are positively charged particles located in the nucleus of an atom.

• Electrons

• Neutrons

• Protons

• Isotopes

Tags

NGSS.MS-PS1-1

Elements on the Periodic Table are ordered according to their

• element name

• element symbol

• number of atoms

• atomic number

Rows in the Periodic Table are called

• Periods

• Groups/Families

• Cousins

• Metals

Column in the Periodic Table are called

• Periods

• Groups/Families

• Cousins

• Metals

The elements that touch the zigzag line on the Periodic Table are called

• metals

• nonmetals

• metalloids

• gasses

Tags

NGSS.HS-PS1-1

What do atoms of the same periodic group have in common?

• They have the same atomic number.

• They have the same chemical symbols.

• The have similar chemical properties.

• They have the same atomic mass.

The chemical symbol in this element box is

• 26

• Fe

• Iron

• 55.845

Tags

NGSS.MS-PS1-1

Models are used to study atoms because atoms are very

• dangerous

• sneaky

• rare

• small

Tags

NGSS.MS-PS1-1