Question

An atom x has proton number 17 and neutron number 18.Write a representation showing mass number and atomic number

Answer 1

Step-by-step explanation:

The number of electrons in an atom of element = 17 The number of protons in the atom = 17 Number of the neutron in the atom = 18 (i) Mass number of the element = (protons + neutrons) = 17 + 18 = 35 (ii) Electronic configuration is 2, 8, 7 (iii) Valency of the element is 1 The atomic number is 17Read more on Sarthaks.com - https://www.sarthaks.com/945083/atom-element-has-proton-17-electrons-and-18-neutrons-calculate-the-mass-number-the-element