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4. If the first and second energy levels of an atom are full, then what would be the total
number of electrons in the atom?
A. 6
B. 8
C. 10
D.18
5. It is a force that holds group of two or more atoms together and makes them function as a
unit.
A. Ionic bond
B. chemical bond
C. Covalent bond
D. Bond
6. What kind of bond will result when two hydrogen atoms combine?
A. Ionic Bond
C. Polar Covalent Bond
B. Metallic Bond
D. Nonpolar Covalent Bond
7. Which of the following will have the highest melting temperature?
A. Calcium Oxide, Cao
C. Sodium Chloride, NaCl
B. Aluminum Oxide, Al2O3
D. Magnesium Chloride, MgCl2
8. Why can metals be hammered without breaking?
A. They are ductile.
C. They are malleable.
B. They are not brittle.
D. Its particles are strong.​

Sagot :

Precioushyyy8idn

Answer:

4. C. 10

5. D. Bond

6. B. Polar Covalent Bond

7. C. Sodium Chloride, NaCl

8. B. They are malleable.