WorksheetsAtoms and Periodic Table
Total questions: 15
Worksheet time: 8mins
What kind of charge do electrons have?
Positive charge
No charge
Negative charge
Electric charge
How do you find the number of neutrons?
Mass number - Atomic number
Protons + Neutrons
Protons + Electrons
Mass number + Atomic number
Who organized the periodic table by atomic mass?
Moseley
J.J. Thomson
Bohr
Mendeleev
What element is located at group 5, period 6?
Hf
Ta
Mo
Cr
What are electrons in the outermost energy level called?
Valence electrons
Valence protons
Valence neutrons
Electron cloud
What has both metal and nonmetal properties?
Electrons
Metalloids
Protons
Metals
If an atom has an atomic mass of 27 and an atomic number of 13, how many neutrons does it have?
13
15
14
12
The majority of elements on the periodic table are
Nonmetals
Metalloids
Metals
Where are Electrons located?
In the nucleus
In the electron cloud
Next to the protons
The number located at the top of an element is the ____.
Mass number
Neutrons
Atomic number
Symbol
What are good conductors of heat?
Nonmetals
Metalloids
Metals
What has no charge?
Proton
Nonmetal
Neutron
Electron
Who created the model that showed the electrons moved in a circular path around the nucleus?
Niels Bohr
Ernest Rutherford
Henry Moseley
Democritus
How many electrons can the second energy level hold?
2
8
18
32
Who organized the periodic table by atomic mass?
James Chadwick
Democirtus
Mendeleev
Moseley
