The table below gives some characteristics of element Y. Characteristics of element Y Values Mass number 11 Number of neutrons i

Question

3 years ago

10

n a single atom 6 Average atomic mass (grams/mole) 10.81 What is the identity of element Y? C B Na S

2 answers:

Elden [556K] · Answer 1 · 2022-08-27T22:57:23+03:00

6 0

I believe the answer is Na because it should be sodium which is Na.

user100 [1] · Answer 2 · 2022-08-28T00:56:01+03:00

Answer is: the identity of element Y is B (boron).

A(Y) = 11; mass number.

A = p⁺ + n°; mass number is the total number of protons and neutrons in a nucleus.

n°(Y) = 6; number of neutrons in atom Y.

p⁺(Y) = A(Y) - n°(Y).

p⁺(Y) = 11 - 6.

p⁺(Y) = 5; number of protons in atom Y.

Z = p⁺; atomic number.

Atomic number is the number of protons, which is characteristic of a chemical element, boron is an element with atomic number 5.