Question

3. Which element has
(a) two shells, both of which are completely filled with electrons?
(b) the electronic configuration 2, 8, 2?
(c) a total of three shells, with four electrons in its valence shell?
(d) a total of two shells, with three electrons in its valence shell?
(e) twice as many electrons in its second shell as in its first shell?
4. (a) What property do all elemento ir. ​

Answer 1

Answer:

a. neon

b. magnesium

c.silicilon

d.boron

e.carbon

question 4 is not properly stated so I have not answered that...

Step-by-step explanation:

PLS MARK AS BRAINLIEST

Answer 2

Answer:

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