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Variation of Metallic Properties

Rewrite the f...

Question

Rewrite the following statements after correction, if necessary:

(i) Elements in the same period have equal valency
(ii) The metallic character of elements in a period increases gradually on moving from left to right.

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Solution

(i) Elements in the same group have equal valency.

(ii) The metallic character of the elements in a period decreases gradually on moving from left to right.

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Similar questions

Give scientific reasons:

1. Atomic size increases down the group.

2. Metallic character decreases from left to right in a period.

3. Elements in the same group show same valency.

Q. Rewrite the following statements after correction, if necessary:

(a) Groups have elements with consecutive atomic numbers.
(b) Periods are the horizontal rows of elements.
(c) Isotopes are the elements of the same group.

Q. How do metallic character and valency of elements change in a period moving left to right in modern periodic table?

Q. Assertion :The oxidizing power of elements increases from left to right along a period. Reason: As we move from left to right, electronegativity of elements increases, so they have less tendency to loose electrons and non-metallic character of elements increases

Q. How does metallic character of elements vary on moving from
(i) Left to right in a period?
(ii) From top to bottom in a group?
Give reasons for your answers.

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