Explain the following :
(a) Group 17 elements are strong non-metals, while group 1 elements are strong metals.

Open in App

Solution

Across the period, atomic size decreases due to an increase in nuclear charge. So, the tendency to accept electrons increases and to lose electrons decreases.

Therefore, group 17 elements are strong non-metals. Whereas, group 1 elements are larger in size as compared to group 17 elements, and they readily lose their outermost electrons.

Suggest Corrections

Similar questions

Q. Explain:
(i) Larger the atomic size, more metallic is the element.
(ii) Halogens have high electron affinity.
(iii) Size of atom changes when it loses or gain electron.
(iv) K is more reactive than Li.
(v) Electronegativity of Cl is higher than S.
(vi) Group 17 elements are non-metals, while group 1 elements are metals.

Q. Which group elements are the most reactive among the non-metals?

Group VII elements are strong non metals, while group I elements are strong metals. Explain.

233. Group VII elements are strong non-metals because they can easily accept an electron to form an anion whereas group I elements are strong metals because they can very easily lose one electron to form a cation. Metals have the tendency to lose their valence electrons and form positive ions, so metallic character is related to the ionization potential. Elements having low ionization potential, lose easily. Thus, a metallic character generally decreases across a period and increases down a group.

Group 1 and Group 2 elements are considered strong metals because

Why group 1 elements are called alkali metals?
Why Group 2 elements are called alkali earth metals?

Join BYJU'S Learning Program

Explain the following : (a) Group 17 elements are strong non-metals, while group 1 elements are strong metals.

Explain the following :
(a) Group 17 elements are strong non-metals, while group 1 elements are strong metals.