Question

lithium brilliant boron karbonn nitrogen oxygen and florence are the first 7 elements of 2nd period of the periodic table

which element has the least ionization energy and which has the highest ionization energy

which element has the highest atomic radius and which element has the least atomik radius

what will be the chemical nature of the 8th element of the period ​

Answer 1

Answer:

Identify the correct statements from the following.

(a) An element with low ionization potential has high electropositivity and hence give out electrons easily.

(b) Due to decrease in ionization energy, in a group, the oxidizing property decreases.

(c) Electronegativity decreases along a period due to increase in nuclear charge and increase in atomic size.

(d) Due to increase in electron affinity the reducing property increases along a period.

December 26, 2019avatar

Swaroopa Tewary

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ANSWER

Group I elements have low ionization energies because the loss of an electron forms a stable octet.

It becomes harder to remove an electron as the atomic radius decreases because the electrons are generally closer to the nucleus, which is also more positively charged.

Electronegativity increases along the period with an increase in the nuclear charge. Thus Fluorine has the highest electronegativity which is at the right-hand side of the periodic table.