75.4k views
2 votes
One isotope of a metallic element has the mass number 67 and 37 neutrons in the nucleus. The cation derived from the isotope has 28 electrons. Write the atomic symbol for this element.

2 Answers

4 votes
No. Of protons = mass no. - no. Of neutrons
No. Of protons = 67 - 37
= 30
No. Of electrons = 28

Zinc will have 30 protons and 28 electrons. So, it will have +2 charge

Symbol - Zn^+2
User Matthew Jaskula
by
7.9k points
6 votes

Answer:

Zinc: Zn

Step-by-step explanation:

The mass number of element is 67

mass number = number of protons + number of neutrons

So number of protons = 67-37=30

Thus the atomic number of element is 30

the atom with atomic number 30 is zinc

On losing 2 electrons it will form dipositive ion which will have 28 electrons

The symbol of element is Zn

User Elithrar
by
7.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.