Question

(1) Observe the diagram and answer the following:
(i) Which type of elements are present near the zig zag
line.
(ii) In periodic table while moving from left to
right electronegativity increases. Explain
(iii) What can you say about the metallic character while
moving from top to bottom in a group?

Answer 1

Answer:

1》METAL AND NON METAL

2》no decreases because non metal does not conduct eletricity

3》sorry dont know

Answer 2

$\huge\underline\mathfrak\purple{Answer1}$

1. Hydrogen (sometimes)
2. Carbon
3. Nitrogen
4. Oxygen
5. Phosphorus
6. Sulfur
7. Selenium
8. Fluorine
9. Chlorine
10. Bromine
11. Iodine
12. Astatine
13. Tennessine (sometimes considered a halogen or metalloid)
14. Helium
15. Neon
16. Argon
17. Krypton
18. Xenon
19. Radon
20. Oganesson

$\huge\underline\mathfrak\purple{Answer 2}$

Electronegative of elements increases on moving from left to right in the periodic table because of decrease in the size of the atom and the increase in nuclear charge.

$\huge\underline\mathfrak\purple{Answer 3}$

Metallic character decreases across a period and increases down a group because the effective nuclear charge acting on the valence shell electrons increases across a period and decreases down the group.

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