Question

3. The following diagram shows a part of the periodic table containing first three
periods in which five elements have been represented by the letters a, b, c, d, and e
(which are not their chemical symbols):
1
18
2
13
14
15
16
17
b
С
d
e
1
1
(a) Which letter represents an alkali metal? Name the alkali metal.
(b) Which letter represents a halogen? Name the halogen.
(c) What type of chemical bond is formed between a and e?
(d) What type of chemical bond is formed between d and e?
1
1​

Answer 1

Explanation:

i) d represents an alkali metal since it belongs to group 1.

(ii) c represents a noble gas since it belongs to group 18.

(iii) e represents a halogen since it belongs to group 17.

(iv) Type of bond is formed between a and e is covalent bond since both a and e are non-metal.

(v) Type of bond is formed between d and e is ionic bond since d is alkali metal and e is halogen.

Answer 2

Answer:

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