What is the total number of electrons in an atom of Cu-65?

1 Answer
Apr 30, 2017

Answer:

For a neutral #""^65Cu# atom, there are...........

Explanation:

#"29 electrons......"#

An isolated, NEUTRAL atom has as many massive positive, nuclear particles in its nucleus, as there are electrons, negative extra-nuclear particles, that are conceived to whizz about the nucleus. The number of massive positive, nuclear particles gives #Z#, the atomic number, and this number defines the identity of the nucleus. For copper, #Z=29#, and thus in the NEUTRAL atom there are 29 electrons.........How many neutrons are there?