WorksheetsChemistry Basics
Total questions: 15
Worksheet time: 15mins
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
How many different elements are in CH3CHO
2
4
3
5
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!
Smallest unit of matter - the building blocks of all things.
Atom
Electron
Element
Molecule
What does the Atomic Number tell us?
The number of protons in the nucleus
The number of neutrons in the nucleus
The number of protons and neutrons in the nucleus
The number of electrons in the nucleus
What is the smallest particle of an element that retains the properties of that element?
Atom
Molecule
Electron
Proton
Which of the following is a chemical change?
Melting of ice
Rusting of iron
Boiling of water
Breaking of glass
What is the chemical formula for water?
H2O
CO2
O2
H2SO4
