6. A pure substance which atoms are of the same type is called
A. Mixture B. Compound C. Element D. All of the Above
7. Examples of noble gases are:
A. Hydrogen and Helium
B. Nobelium and Einsteinium
C. Helium and Neon
D. Magnesium and Chlorine
8. The lightest gas is:
A. Helium B. Oxygen
C. Neon
D. Carbon Dioxide
9. The table that lists down the more than 100 elements is known as the:
A. Mendeleev's Table
C. Chemistry Element Table
B. Periodic Table
D. Octet Table
10. The chemical symbols of chlorine, potassium, copper, sodium, nitrogen
and iron in order are:
A. C1, P, Co, So, Ni, I
C. CI, K, Co, So, N, Fe
B. C, K, Co, Na, N, Fe
D. CI, K, Cu, Na, N, Fe
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Answer:
6) C. Element
7)C. Helium and neon
8)D. Carbon dioxide
9)B. Periodic Table
10)D. CI,K, Cu, Na, N, Fe
Answer:
6.C.
7. C.
8.A.
9.B.
10.D.