Skip to content

Course home

Sign up

5.1.2a Composition of the nucleus and isotopes

EasyMedium
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147
Question 35

A potassium nuclide is represented by the symbol shown.

1939K ^{39}_{19}\text{K} 1939​K

Which statements about a nucleus of this potassium nuclide are correct?

  1. The nucleus contains 20 neutrons.
  2. The nucleon number is 19.
  3. The proton number is 19.
A

1 and 2 only

B

1 and 3 only

C

2 and 3 only

D

3 only

Markscheme

5.1.2a Composition of the nucleus and isotopes Questions

  1. IGCSE
  2. /Physics
  3. /5.1.2a Composition of the nucleus and isotopes

170 exam-style questions on CIE IGCSE Physics 5.1.2a Composition of the nucleus and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank