Question

an element X has mass number 35 and number of neutrons are 18 how many number of protons are present in atom what is its atomic number and calculate the number of electrons also​

Answer 1

Answer:

4.5litre sample of gas at 20degree celsius is heated to a temperature of 80 degree celsius .if the amount of gas and the pressure of the gas remain constant, what will be the new volume of the gas?

Answer 2

Answer:

mass number is equall to sum of protons and neutrons..

Explanation:

so to find proton we just subtract mass number from neutrons.so we get number of protons..as under..35_18=17....so number of protons are 17....and in an atom number of protons and electrons are same in nucleus that is 17......due to this an atom is neutral...