Chemistry Basics

On the Periodic Table, the rows are called ____.

• Periods

• Groups

A highly reactive group; first group on Periodic Table.

• alkali metals

• noble gases

• halogens

• metalloids

The SI unit for temperature is __?__.

• degree fahrenheit  (° F)

• degree celsius  (° C)

• kelvin  (K)

• degree centigrade  (°C)

28 °C = __?__ K

• 301

• 245

• 401

• 345

Tags

NGSS.MS-PS1-4

How many different elements are in CH₃CHO

• 2

• 4

• 3

• 5

Tags

NGSS.MS-PS1-1

What are the shaded elements?

• Metals

• Nonmetals

• Metalloids

If a student observes a silvery solid that is malleable, good conductor, and ductile it is a...

• nonmetal 

• metal 

• metalloid

Which of the following is a physical property of a metalloid?

• texture

• malleable

• brittle

• semi-conductor

How many significant figures will be in the answer to the following question:
7.62 x 6.98 x 3.2645

• 1

• 2

• 3

• 4

If you discover a new Element, and you know its a semi-conductor, what would it have to be?

• A Metal!

• A Non-Metal!

• A Metalloid!