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Posted by: Mr. Babatunde
« on: February 20, 2020, 01:24:06 PM »



The solution to [Chemistry III] Atomic Structure And Chemical Combination set via our computer base test.

1. An element belongs to a period in the periodic table because

A. the number of electrons in its outer-most shell
B. the shell number ✔
C. the elctronic configuration in the azimuthal quantum number
D. the size of the atom

2. The major reason why chemical reaction occurs among elements is that they have the tendency to

A. attain the nearest noble gas structure ✔
B. become a metal
C. become a non-metal
D. become any noble element

3. In electrovalency most metallic atoms with few valency elctrons to give out electron because

A. they are unstable
B. they require less energy to give away these electrons ✔
C. they require more energy to give away these electrons
D. they need non metals to operate

4. In electrovalency, valence electrons are transferred and the atomic number is

A. also reduced
B. stablized
C. unaffected ✔
D. destablized

5. Arrangement of ions in a regular pattern in a solid crystal is called

A. configuration
B. atomic structure
C. lattice ✔
D. buffer

6. If force applied to an electrovalent crystal

A. the shape will be deformed
B. the shape will not be deformed ✔
C. the crystal will not be fractured
D. the shape and the crystal structure will be deformed

7. The bond type in a diatomic nitrogen gas is

A. double covalent bond
B. triple covalent bond ✔
C. single covalent bond
D. double elctrovalent bond

8. The bond type between copper II ion and water molecule is

A. electrovalent bond
B. covalent bond
C. active covalent bond ✔
D. hydrogen bond

9. Rare gas are stable because they

A. are mono atomic
B. are volatile gases
C. form ions easily
D. have duplet or octet electronic configurations in the outermost shells of their atoms ✔

10. Which element has an elctronic configuration of 1s2 2s2 2p6 3s1 ?

A. Calcium
B. Chlorine
C. Potassium
D. Sodium ✔


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