WorksheetsThe elements + Periodic Table
Total questions: 20
Worksheet time: 12mins
The atomic number tells you what?
number of electrons
number of atoms
number of neutrons
both electrons and protons in an atom.
Sn
tin
sulfur
iron
sodium
Zinc
Z
Zi
ZN
Zn
Neon
N
No
Ne
Nn
What are the vertical columns on the periodic called?
groups
periods
nonmetals
metals
metalloids
What do the vertical columns on the periodic table tell us?
The number of orbitals
The number of valence electrons (electrons on the outer most shell)
How do you calculate the number of neutrons? *
Mass = Atomic number - Neutrons
Mass - Atomic number = Neutrons
Atomic number = Neutrons
How many protons and electrons does nickel have?
28
58.69
What is the atomic mass?
58.693
28
Who developed the first periodic table, organizing the elements according to atomic weight. When he ordered the elements, he noticed that there were patterns of repeating properties. The modern periodic table sequences elements from left to right by atomic number.
This was the first person to organize a periodic table.
Neils Bohr
Dmitri Mendeleev
Democritus
Ernest Rutherford
A subatomic particle that has a negative charge
nobles gases
protons
electrons
neutrons
A subatomic particle that has a positive charge and that is found in the nucleus of an atom
Proton
elecrtron
groups
neutrons
Which color on the image of the periodic table corresponds with the noble gases.
red
black
blue
orange
