Question

What is the identity of element q if the ion q2- contains 36 electrons? Type the correct symbol for the element in the box. For example, br?

Answer 1

The identity of element q is Calcium (Ca).

Step-by-step explanation:

The ion q2- contains 36 electrons, so we need to determine the identity of element q based on this information. Since each electron has a charge of -1, the total charge of the q2- ion is -2. Therefore, q must have a charge of +2 in its neutral state. The element with a 2+ charge and 36 electrons is Calcium (Ca). Therefore, the identity of element q is Ca.

Answer 2

Answer:- selenium, Se.

Explanations:- When an element gain electrons then it becomes negatively charged means it forms it's anion. Total electrons of the anion are the sum of electrons and the charge of the anion. In our problem, the element is q and it forms
`q^-^2` ion. The Total electrons for the anion
`q^-^2` = electrons of q + 2

As per the given info, there are 36 electrons in
`q^-^2` ion.

So, 36 = electrons of q + 2

electrons of q = 36 - 2

electrons of q = 34

q, the neutral atom has 34 electrons means it's atomic number is 34. If we check out the periodic table then the element with atomic number 34 is Selenium, Se.