Question

6. If'a' is the number of electrons in a dispositive ion and it has three neutrons
more than the number of protons, identify the atomic number and mass
number
(a) a + 2, a +5
(b) a + 2, 2a +7
(c) a +5,21 +7
(d) a +5, 2n + 5​

Answer 1

Answer:

Ions are charged species carrying either positive or negative charges. Unipositive ion is the ion carrying one unit of positive charge. ... Dipositive ion is the ion carrying two units of positive charge. Example is Ca2+.

Answer 2

see here the number of electrons given = a

therefore the number of protons = a+2

therefore the atomic number = a+2

number of neutrons = a+2+3 = a+5

therefore atomic Mass = No. of protons + No. of neutrons

= (a+2) + (a+5)

= 2a+7

Explanation:

see here the number of electrons given = a

therefore the number of protons = a+2

therefore the atomic number = a+2

number of neutrons = a+2+3 = a+5

therefore atomic Mass = No. of protons + No. of neutrons

= (a+2) + (a+5)

= 2a+7