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- 1. Multiple Choice
It is the idea of John Newlands about the similarity of every eight elements in the periodic table.
Law of Independent Assorment
Gas Laws
Law of Enertia
Law of Octaves
- 2. Multiple Choice
It is the state of matter with definite mass and volume but indefinite shape.
Solid
Liquid
Gas
Plasma
- 3. Multiple Choice
Which of the following is an example of an element?
Water
Air
Titanium
Alloy
- 4. Multiple Choice
Napthaline balls are placed in our cabinets to avoid cockroaches. It changes from a solid phase to a gaseous phase. What process is present in this scenario?
Freezing
Melting
Sublimation
Deposition
- 5. Multiple Choice
An atom contains 34 electrons and 35 neutrons. How many protons are there?
34
35
69
30
- 6. Multiple Choice
What is the mass number of an atom with 20 electrons and 25 neutrons?
40
25
20
45
- 7. Multiple Choice
What is the atomic number of an atom with 40 neutrons and mass number of 75?
30
40
35
75
- 8. Multiple Choice
What element below can satisfy this electronic configuration: 1s2 2s2 2p6 3s2 3p2 ?
silicon- 14
Argon- 18
phosphorous- 15
calcium- 20
- 9. Multiple Choice
Which of the following is the correct electron configuration of carbon -6?
1s2 2s2 3p2
1s2 2s3 3p1
1s3 2s3
1s2 2s2 3p3
- 10. Multiple Choice
He found out that elements should be arranged in increasing atomic number and not mass number.
John Newlands
Dmitri Mendeleev
Henry Mosely
- 11. Multiple Choice
TRUE or FALSE. Elements in the horizontal line are called periods.
True
False
- 12. Multiple Choice
This is the group in the periodic table with unreactive gases and complete valence electrons.
Representative elements
Transition metals
Noble Gases
Actinides
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