WorksheetsFinal Assessment
Total questions: 20
Worksheet time: 12mins
Which element has the ground-state electron configuration [Ar] 4s2 3d9?
copper
argon
zinc
gold
What is the highest energy level (n) that is occupied in Calcium?
n = 1
n = 2
n = 3
n = 4
Determine the group, period, and block for the element with the following electron configuration [Xe] 6s2.
Group 16, Period 2, p-block
Group 2, Period 6, s-block
Group 14, Period 4, p-block
Group 3, Period 2, d-block
The f sublevel can hold 14 electrons, which means it has __ orbitals.
2
4
5
7
All of the following elements are solids at room temperature EXCEPT__.
aluminum
gold
mercury
sodium
The transferring of electrons result in the formation of __.
covalent molecules
positively charged molecules
ionic compounds
hydrogen bonds
How many atoms are represented by the prefix penta?
4
5
3
7
We drink it to survive, so what is the name of the compound H2O?
Dihydrogen Monoxide
Trinitrogen Oxide
Dinitrogen Monoxide
Trihydrogen Dioxide
When naming covalent compounds, prefixes (such as mono, di, tri, or deca) are used to represent the number of atoms except for the first atom in a compound that only has one atom. For example, CO which is orderless and colorless, but is extremely deadly because it competes with the oxygen molecules in our body. What is the name of this compound?
(a)
What is the name of the compound PCl5?
Phosphorus Tetrachloride
Phosphorus Pentachloride
Monophosphate Chloride
Pentaphosphoric Chloride
Group two metals are the Alkali Earth metals that have a __.
+1 charge
+2 charge
+3 charge
+4 charge
For a metal that has more than one cation the Roman number in parenthesis is used to show its __.
neutrons
charge
protons
both charge and protons
When naming binary ionic compounds __.
the metal cation is named first, followed by the nonmetal anion
the nonmetal is named first, followed by the nonmetal anion
the anion is named only
the metal cation is named only
Balance the equation ___Fe + ___Cl2− → ___FeCl3 by adding the coefficient in the blanks. The coefficient is the number of atoms needed to balance the equation on both sides.
2 Fe + 4 Cl2- → 3 FeCl3
3 Fe + 1 Cl2- → 3 FeCl3
2 Fe + 3 Cl2- → 2 FeCl3
1 Fe + 3 Cl2- → 2 FeCl3
How many atoms are in this compound (or formula) 2Fe2O3?
There are 4 Fe (iron atoms) and 6 O (oxygen atoms).
There are 2 Fe (iron atoms) and 3 O (oxygen atoms).
There are 5 Fe (iron atoms) and 2 O (oxygen atoms).
none of the above
What is the molar mass of H20?
16 g/mol
30 g/mol
18 g/mol
24 g/mol
How much is one mole of doughnuts?
6.02 X 1023
5.7 X 1023
60.2 X 10-23
.0606 X 1023
How many grams are in 4.30 moles of Aluminum (Al)?
210 g
116 g
221 g
172 g
How many moles are in 32.7 grams of ethanol (C2H6O)?
89.7 mol
0.57 mol
1.41 mol
0.710 mol
This equation H2 + Cl2−→ HCl
is balanced because the number of hydrogen atoms are equal on both sides
is balanced because the number of chlorine atoms are equal on both sides
is unbalanced because there are two hydrogen and two chlorine atoms on the left side and only one hydrogen and one chlorine atom on the right side
is unbalanced because both sides of the equation have the same number of hydrogen and chlorine atoms
