which element has this electron configuration?

Question

ELECTRON CONFIGURATION
Energy Level: 1 2 3
Electrons: 2 8 8

according to the peridoic table and the info above, which element has this electron configuration?

a) Sodium

b) Neon

c) Magnesium

d) Argon

Answer 1

2+8+8= 18. Which element is #18 on the periodic table?

Answer 2

It is Argon. 2+8+8= 18
Argon has a proton number of 18.

Answer 3

It will be the third element down in group VIII, i.e. argon.

Also, it must have an atomic number of 2+8+8 = 18, which of course also indicates argon.

Answer 4

you're to apply the noble gas on the line above the element which you're doing the configuration for. subsequently, employing purely any element could be incorrect. Noble gases are used by way of fact their shells are finished. by way of fact their shells are finished, they can't income anymore electrons. they're good components. whilst employing the noble gas listed until now the element, that noble gas by way of fact the comparable electron configurations every time. subsequently, employing that to start with yields the dazzling comparable beginning every time by way of fact it can not have a distinctive one. i'm hoping that helps! I hated chemistry in college....blah!