# How many protons are found in an atom of platinum?

##### 1 Answer
Nov 27, 2015

$Z$, the atomic number of $P t$, is $78$.

#### Explanation:

Since the atomic number is precisely the number of protons in the atomic nucleus, and is also the number that defines the identity of the element, there are 78 protons in the platinum nucleus.

Can you tell me how many electrons there are in a platinum atom?