Which sample represents a pure element?

• A

• B

• C

Tags

NGSS.MS-PS1-1

Periods are the ______________ rows on the periodic table.

• vertical

• horizontal

Groups are the ____________ columns on the periodic table.

• vertical

• horizontal

How many atoms of carbon (C) are found in this compound?

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

In each square of the periodic table, the number at the bottom is the:

• element name

• Atomic mass

• Atomic number

• symbol

The number at the top of each square on the periodic table is the ...

• Atomic number

• Element name

• Atomic mass

• Symbol

Nitrogen is in group number______.

• Group 2

• Group 5

• Group 7

• Group 8

Tags

NGSS.MS-PS1-1

Each vertical column on the periodic table is called a...

• group

• period

• crew

• tower

 

The horizontal rows on the periodic table are called

• group

• periods

• element

• atom

What does PTCE stand for in the context of chemistry?

• Periodic Table of Chemical Elements

• Polymer Technology and Chemical Engineering

• Pharmaceutical Technician Certification Exam

• Proton Transfer Chemical Equilibrium

Tags

NGSS.HS-PS1-2