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Alkali Metals

(a) What are ...

Question

(a) What are the following groups known as ?

(i) Group 1 (ii) Group 17 (iii) Group 18

(b) Name two elements of each group.

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Solution

Group 1 (Alkali Metals)

Group 2 (Alkaline Earth Metals)

Group 13 (Boron Group)

Group 14 (Carbon Group)

Group 15 (Nitrogen Group)

Group 16 (Chalcogens)

Group 17 (Halogens)

Group 18 (Noble Gases)

Group I: The elements are Lithium and Sodium

Group I7: The elements areChlorine and Bromine

Group I8: The elements are Neon and Argon

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Q. (a) What are the following groups known as?

(i) Group 1

(ii) Group 17

(iii) Group 18

(b) Name two elements of each group.

Q. What are the three groups into which all the elements can be divided ? Name two elements belonging to each group.

Which of the following group of elements are known as inner transition elements?

Q. The elements in groups 1, 2 and 13 to 18 are known as Main group elements.

Q. The first element of the groups 1 and 2 are different from other members of the respective groups. Their behaviour is more similar to the second element of the following groups. What is this relationship known as?

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