Please help! Will mark brainliest and 5 stars. ONLY RIGHT ANSWERS. Using the periodic table, match the number of valence electrons with the group number.

Question 1 options:

1 valence electron

4 valence electrons

8 valence electrons

We don't know

3 valence electrons

Group 1

Group 14

Group 18

Group 3

Group 13

1 valence electron - group 1

4 valence electrons - group 14

8 valence electrons - group 18

3 valence electrons - group 13

Explanation:

Elements are placed in the periodic table according to the number of valence electrons in their outermost shell.

Hence,  all elements in the same group have the same number of outermost shell electrons.

Group 1 elements have only one valence electron, group 14 elements have 4 valence electrons, group 13 elements have 3 valence electrons while group 18 elements have 8 valence electrons.

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.