The Periodic Table

In an element box, the number at the 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

Isotopes are atoms of the same element with different numbers of

• electrons

• neutrons

• protons

• nuclei

Elements on the Periodic Table are arranged according to their

• element name

• element symbol

• number of atoms

• atomic number

Rows (going across from left to right) in the Periodic Table are called

• Periods

• Groups/Families

• Cousins

• Metals

Columns (going vertically from top to bottom) in the Periodic Table are called

• Periods

• Groups/Families

• Cousins

• Metals

The elements that touch the bold zigzag line (the staircase) on the Periodic Table are called

• metals

• nonmetals

• metalloids

• gasses

The smallest particle of an element that has the same chemical properties of the element is

• a molecule of that element.

• an atom of that element.

• a proton of that element.

• the nucleus of the element.

Tags

NGSS.MS-PS1-1

Protons have a ____________ charge, neutrons have a ____________ charge, and electrons have a ____________ charge.

• positive; negative, neutral

• positive, neutral, negative

• neutral, negative, positive

• negative, neutral, positive

Tags

NGSS.MS-PS1-1