The electron configurations of two unknown elements X and Y are shown . X: 1s^ 2 2s^ 2 2p^ 6 3s^ 1 Y: 1s^ 2 2s^ 1 Which statemen

Question

3 years ago

6

t is most likely correct about the two elements ?

2 answers:

PIT_PIT [208] · Answer 1 · 2022-05-11T14:08:27+03:00

8 0

Answer:

See below.

Explanation:

They both have 1 valency electron so will be metallic and in the same Group (Group 1) of the Periodic Table, so will have similar properties.

lozanna [386] · Answer 2 · 2022-05-11T15:42:59+03:00

Answer:

This question is incomplete

Explanation:

X has an atomic number of 11 and hence it's sodium (Na) while Y has an atomic number of 3 and hence it is Lithium (Li).
The atomic mass of X is 23 while that of Y is 7

X has three electron shells while Y has two electron shells
X and Y cannot form a compound as there ions are both positively charged (cations). However, there ions both have a charge of +1; hence are univalent positive metals.
They are both metals and are found in group 1 of the periodic table
The are highly reactive metals because they have just one electron in there outermost shell
They react with halogens in group 7 to form salts
They dissolve in water to form alkaline