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WorksheetsThe Periodic Table, Ions, & Isotopes
Total questions: 15
Worksheet time: 5mins
What scientist first created the modern periodic table, even predicting the existence of elements that had not yet been discovered?
Dalton
Rutherford
Mendeleev
Thomson
Elements on the modern periodic table are arranged by...
Increasing atomic number
Decreasing atomic mass
Alphabetical order
Most common to least common
Periods on the periodic table are vertical.
True
False
The largest group of metals on the periodic table are the...
Transition metals
Alkali metals
Alkaline earth metals
Rare earth metals
Nonmetals are generally located on the right hand side of the periodic table.
True
False
Which group of elements is highly stable and nonreactive with other elements?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
Anions are ions that have a (a) charge.
How many total electrons are present in the Mg2+ ion?
12
10
14
24
How many total electrons are present in the Cl- ion?
16
17
18
35
Two isotopes of the same element will have different number of which subatomic particle?
(a)
What is the difference between two isotopes of the same element? (select all that apply)
Number of protons
Number of neutrons
Mass number
Atomic number
How many neutrons would an atom of Lithium - 7 have if Lithium has 3 total protons?
3
4
5
7
How many protons does Carbon - 14 have if Carbon's atomic number is 6?
6
7
8
9
What is the charge on an atom of Sulfur - 33 with 18 electrons and an atomic number of 16?
-2
-1
+1
+2
How many electrons does Ca2+ have if Calcium's atomic number is 20?
20
22
18
40
