The formulae of chloride of metal $M$ is $M C l_{2}$ . The metal $M$ belongs to __________ group.

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Solution

Group 1 elements form $M C l$ chlorides
Group 2 elements form $M C l_{2}$ chlorides
Hence, the metal belongs to second group.

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Fill in the blanks:

1. The formula of chloride of metal M is MCl₂. The metal M belongs to ________ group.

2. ________ group in the periodic table contains elements that are all gases at room temperature.

3. The arrangement of elements in a group of three is known as ________.

4. The law used by Newlands to arrange elements is known as ________.

5. The element eka-aluminium in Mendeleev’s periodic table is known as ________ in the modern periodic table.

6. Elements showing properties of both metals and non-metals are known as ________.

An element 'M' has atomic number 12.

(a) Write its electronic configuration.

(b) State the group to which 'M' belongs.

(d) Write the formula of its chloride.

The element 'M' has an atomic number 11.

(a) What is it's electronic configuration?
(b) Which group does 'M' belong to?
(c) Is 'M' a metal or a non-metal?
(d) Write the formula of its chloride.

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The formulae of chloride of metal M is MCl2. The metal M belongs to __________ group.

Group 1 elements form MCl chloridesGroup 2 elements form MCl2 chloridesHence, the metal belongs to second group.

The formulae of chloride of metal $M$ is $M C l_{2}$ . The metal $M$ belongs to __________ group.

Group 1 elements form $M C l$ chlorides
Group 2 elements form $M C l_{2}$ chlorides
Hence, the metal belongs to second group.