Question

B. Fill in the blanks with the correct word from the word in brackets.
(1x10=10)
a. A symbol represents a short form of a/an_(atoms/elements/molecule).
b. Compounds are always (heterogeneous/homogeneous).

d. A chemical equation is a shorthand form for a (physical/chemical change.

f. An element has atomic number 20. Its position is period (2/3/4).
g. The period 1 contains elements (2/3)
h. Period 2 is a period. (short/long).
1. On moving from left to right in a period, the number of electron shells .(remain
same/increase by one).
Carhan at 6) is placed in aroun
714/15)

Answer 1

Answer:

a) Element

b) Homogeneous

d) Chemical change

f) 4

g) 2

h) Short

1) Increase by 1

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Answer 2

Answer:

Hope it helps u

Explanation:

a. A symbol represents a short form of elements

b. Compounds are always homogeneous .

d. A chemical equation is a shorthand form for a chemical change .

f. An element has atomic number 20. Its position is period 4

g. The period 1 contains elements 2

h. period 2 is short period

i.  increases

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