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- 1. Multiple Choice
What type of chemical bonds share electrons between atoms ?
Covalent bond
Ionic bond
Electronic
Elemental
- 2. Multiple Choice
State whether the given statements is true or false “ ionic bonds are non-directional “?
True
False
- 3. Multiple Choice
An atoms differs from its ion in which almond the following?
Mass number
Atomic number
Neutrons
Number of protons
- 4. Multiple Choice
Which among the following is both molecule and compound?
C6 H12 O6
H2O
CO2
NaCl
- 5. Multiple Choice
Bond energy an the corresponding bond length very directly with each other . Comment whether the statement is true or false ?
True
False
- 6. Multiple Choice
A chemical bond is ?...
Made up of electrons
An attractive force that holds atoms together
All of the above ( both )
- 7. Multiple Choice
Which of the following describes covalent bonds ?
Bonds form because of the opposite charges
Bonds form to fill outer electrons shells
Electrons are transferred between atoms
Covalent bond are magical
- 8. Multiple Choice
Calcium carbonate contains a polyatomic ion ?
True
False
- 9. Multiple Choice
Covalent bonds are formed between two metallic elements ?
True
False
- 10. Multiple Choice
The. Charge of the normal atom is ?
Positive
Negative
Neutral
- 11. Multiple Choice
Protons have a charge of ?...
-1
+1
-2
+2
- 12. Multiple Choice
Electrons have a charge of ?...
-1
+1
-2
+2
- 13. Multiple Choice
Most atoms have no net charge because they have ?...
An equal number of charged an non-charged particles
Neutrons in their nuclei
An equal number of electrons and protons
An equal number of neutrons and protons
- 14. Multiple Choice
How many electrons are shared in a triple bond ?
6
3
6 pairs
5
- 15. Multiple Choice
When a metal reacts with a non-metal , it’s makes ...?
An ionic compound
A covalent compound
A low melting point
Water molecule
- 16. Multiple Choice
If you saw the following, K+, what does it tell you about the ion ?
It has lost one electron
It has lost one proton
It has lost two electrons
It has a negative ion
- 17. Multiple Choice
What group of elements satisfies the octet rule without forming compounds ?
Halogen
Noble gas
Alkali metal
Alkaline-earth metal
- 18. Multiple Choice
A non-polar covalent bond is unlikely when two atoms of different elements join because the atoms are likely to differ in ...?
Density
State of matter
Electronegativity
Polarity
- 19. Multiple Choice
Where are valence electrons located ?
In the nucleus of the atoms
In the outer shell of the atom
In the inner shell of the atom
All electrons are considered valence electrons
- 20. Multiple Choice
Atoms with a relatively empty outer shell want to gain electrons?
True
False
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