Question

Considering the elements of period 3 in the modern periodic table,

answer the following questions:


(A) Name the 'element' in which all the shells are completely filled with

electrons.


(B) Name the element which has one electron in the outermost shell.


(C) State the most electronegative element in this p​

Answer 1

Explanation:

(a) The element is silicon. d-first shell is completely filled and valence shell has three electrons so its electronic configuration will be 2,3. therefore the element is Boron. e-first shell can have two 2 electrons.

(b) So, Lithium, Sodium, and Potassium are the 3 elements that have a single electron in their outermost orbit.

(c) Thus, fluorine is the most electronegative element, while francium is one of the least electronegative.

Answer 2

Answer:

(A) silicon

(B) Lithium, Sodium, Potassium

(C) Fluorine

Explanation:

Please mark me as the Brainliest answer