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kolbaska11 [484]
3 years ago
5

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.
Chemistry
2 answers:
Anuta_ua [19.1K]3 years ago
6 0
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
miv72 [106K]3 years ago
5 0

Answer:

Zinc: Zn

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

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