An atom of the element zinc has an atomic number of 30 and a mass number of 65. How many protons does an uncharged

zinc atom have?

An uncharged zinc atom have 30 protons.

Explanation:

Each chemical element is characterized by the number of protons in its nucleus, which is called the atomic number Z. But in the nucleus of each element it is also possible to find neutrons, the number of which can vary. The atomic mass (A) is obtained by adding the number of protons and neutrons of a given nucleus.

In this case, an atom of the element zinc has an atomic number of 30 and a mass number of 65. So, you can know that Z=30 and A=65. Then, the number of protons is 30. And knowing that the number of protons plus the number of neutrons is 65, it is possible to say that the number of neutrons is 35.

Finally, an uncharged zinc atom have 30 protons.

30 The atomic number is the number of protons