Question

Which element has the same number of electron shells as tungsten (W)?

(1 point)
Responses

yttrium (Y)
yttrium (Y)

gold (Au)
gold (Au)

nickel (Ni)
nickel (Ni)

molybdenum (Mo)

Answer 1

Tungsten (W) has an atomic number of 74 and is located in period 6 of the periodic table. It has 6 electron shells.

To find an element with the same number of electron shells, we should look for elements in period 6 as well. Among the options provided:

- Yttrium (Y) is in period 5 (5 electron shells).
- Gold (Au) is in period 6 (6 electron shells).
- Nickel (Ni) is in period 4 (4 electron shells).
- Molybdenum (Mo) is in period 5 (5 electron shells).

Thus, the element that has the same number of electron shells as tungsten (W) is **gold (Au)**.