WorksheetsSummer II Chemistry Final Review A
Total questions: 20
Worksheet time: 10mins
The modern periodic table is arranged in order of increasing atomic ____.
mass
charge
number
radius
Who arranged the elements according to atomic mass and used the arrangement to predict the properties of
missing elements?
Henry Moseley
Antoine Lavoisier
John Dalton
Dmitri Mendeleev
In which of the following sets is the symbol of the element, the number of protons, and the number of
electrons given correctly?
In, 49 protons, 49 electrons
Zn, 30 protons, 60 electrons
Cs, 55 protons, 132.9 electrons
F, 19 protons, 19 electrons
What element has the electron configuration 1s 2 2s2 2p 6 3s2 3p 2 ?
Nitrogen
Selenium
Silicon
Silver
Which subatomic particle plays the greatest part in determining the properties of an element?
proton
electron
neutron
none of the answers
Atomic size generally ____
decreases as you move from top to bottom within a group
decreases as you move from top to bottom within a group
remains constant within a period
decreases as you move from left to right across a period
Which of the following statements is true about ions?
Cations form when an atom gains electrons.
Cations form when an atom loses electrons.
Anions form when an atom gains protons.
Anions form when an atom loses protons
Which of the following statements is NOT true about ions?
Cations are positively charged ions.
Anions are common among nonmetals.
Charges for ions are written as numbers followed by a plus or minus sign.
When a cation forms, more electrons are transferred to it
What is the energy required to remove an electron from an atom in the gaseous state called?
nuclear energy
ionization energy
shielding energy
electronegative energy
How many valence electrons are in an atom of phosphorus?
2
3
4
5
How many valence electrons are in an atom of magnesium?
2
3
4
5
What is the name given to the electrons in the highest occupied energy level of an atom?
orbital electrons
valence electrons
anions
cations
What is the electron configuration of the calcium ion?
1s 2 2s 2 2p6 3s 2 3p6
1s 2 2s 2 2p6 3s 2 3p4 4s2
1s 2 2s 2 2p6 3s 2 3p5 4s1
1s 2 2s 2 2p6 3s 2
What is the formula of the ion formed when potassium achieves noble-gas electron configuration?
K2+
K+
K1-
K2-
Which of the following elements does NOT form an ion with a charge of 1+ ?
fluorine
hydrogen
potassium
sodium
How many electrons does nitrogen gain in order to achieve a noble-gas electron configuration?
1
2
3
4
Which of the following occurs in an ionic bond?
Oppositely charged ions attract.
Two atoms share two electrons
Two atoms share more than two electrons
Like-charged ions attract.
What is the net charge of the ionic compound calcium fluoride?
2-
1-
0
1+
What is the formula unit of sodium nitride?
NaN
Na2N
Na3N
NaN3
What is the name of the ionic compound formed from lithium and bromine?
lithium bromine
lithium bromide
lithium bromium
lithium bromate
