WorksheetsIons, Ionic Bonding and Crisscross Chem Practice
Total questions: 40
Worksheet time: 30mins
An atom is ______________ where the protons equal the electrons.
charged
neutral
A cation has...
more protons than electrons
more electrons than protons
An anion has...
more protons than electrons
more electrons than protons
Atoms lose or gain electrons to become like their...
nearest halogen
nearest noble gas
nearest transition metal
Valence electrons are the
outer most electrons in an atom
total electrons in an atom
The _____ the element is in determines the number of valence electrons it has.
period/row
group/column
Na+ and Cl- create...
Na2Cl
NaCl2
Na2Cl2
NaCl
Na1+ F1-
Alkali metals (Group 1 metals) form
+1 ions
+2 ions
-1 ions
-2 ions
What is the charge on a magnesium ion?
3+
2+
2-
3-
What is the charge on a oxygen ion?
3+
2+
2-
3-
Why do all bonds form?
so the number of protons equals the number of electrons
so an atom can become unstable
to fill the outermost energy level
How does calcium become an calcium ion?
it loses 2 electrons
it gains 2 electrons
Write the scientific name for the following ionic compound: NaCl
(a)
How should you read the formula LiF?
Lithiide Fluorine
Lithium Fluorium
Lithium Fluoride
Lithium Phosphine
NaBr
In a chemical formula, the number of each type of atom in the compound is shown by numbers called _______.
superscripts
oxidation numbers
chemical symbols
subscripts
BONUS QUESTION: What is the name of this formula? KC2H3O2
(a)
Which of the following is nitrate?
NO-
NO2-
NO3-
NO4-
Which of the following is hydroxide?
Cr2O4-2
Cr2O4-2
O3-2
OH-
The name of Na2SO4 is
sodium nitrate.
sodium hydroxide.
sodium sulfate.
sodium phosphate.
What is the formula for chromium (II) hydroxide?
CrOH
Cr(OH)1
Cr(OH)3
Cr(OH)2
How many VALENCE ELECTRONS does Chlorine have?
2
7
8
10
17
Ionic bonds are formed when electrons get
Shared between two atoms
Removed from both atoms
Transferred from one atom to another
Added to both atoms
Name this ionic compound: Al2O3
Dialuminum oxide
Aluminum oxygen
Oxygen Aluminide
Aluminum oxide
How many Lewis Dots should Aluminum have?
13
3
8
4
How many Lewis Dots should Sulfur have?
16
6
7
8
Atoms are MORE STABLE when they are combined.
True
False
Which type of bond involves electrostatic attraction between positive and negative ions?
Covalent
Metallic
Ionic
Network
Click on all the properties of Ionic Bonds.
Brittle
High Melting Point
Hard
Conducts electricity when dissolved in water
Conducts electricity when melted (molten)
What is a Lewis Dot Structure?
It shows all of the particles in the atom.
Contains protons and neutrons
Only shows the element symbol and it's outer most electron shell
Contains protons and electrons
