2nd nine weeks science exam

Which is the best description of an element?

• A substance that cannot be broken down into simpler substances

• A collection of atoms that have different abilities when joined together

• A man-made mineral

• A mixture of substances

A one or two letter abbreviation  used to represent an element is called a(n) ________

• chemical symbol
• element sign

Tags

NGSS.MS-PS1-1

In an element box, the number at top is the

• atomic number

• atomic name

• atomic mass

• atomic symbol

Elements on the Periodic Table are ordered according to their

• element name

• element symbol

• number of atoms

• atomic number

What is the chemical symbol for Aluminum?

• A
• Al
• Au

Silver

• Si
• S
• E
• Ag

The chemical symbol in this element box is

• 26

• Fe

• Iron

• 55.845

Tags

NGSS.MS-PS1-1

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

A substance that consists of 2 or more different elements is a

• element

• data table

• symbol

• compound

Tags

NGSS.MS-PS1-5

Is sugar (C₁₂H₂₂O₁₁) an element or a compound?

• Element
• Compound

Tags

NGSS.MS-PS1-1