NECO Physics · Atomic and nuclear physics
Structure of the nucleus: NECO Physics Past Questions and Answers
What the WAEC syllabus covers in Structure of the nucleus
Our summary: What the nucleus is made of, radioactive decay and half-life, and fission and fusion.
- Composition of the nucleus (Protons and neutrons. Nucleon number ($A$), proton number ($Z$), neutron number ($N$) and the equation $A = Z + N$ to be treated. Nuclides and their notation. Isotopes.)
- Radioactivity - natural and artificial (Radioactive elements, radioactive emissions ($\alpha$, $\beta$, $\gamma$) and their properties and uses. Detection of radiations by G-M counter, photographic plates, etc. should be mentioned. Radioactive decay, half-life and decay constant. Transformation of elements. Applications of radioactivity in agriculture, medicine, industry, archaeology, etc.)
- Nuclear reactions - fusion and fission (Distinction between fusion and fission. Binding energy, mass defect and energy equation: $E = \Delta m c^2$. Nuclear reactors. Atomic bomb. Radiation hazards and safety precautions. Peaceful uses of nuclear reactions.)
Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)). NECO questions are matched to the WAEC syllabus topic.
NECO Physics questions on Structure of the nucleus
- NECO 2009Determine the value of x from the nuclear reaction below, ^ 222 86 Rn → ^ x 88 Ra + 2β + energy
- NECO 2005Which of the following is used for shielding radioactive fallout?
- NECO 2005Which of the following statements is correct?
- NECO 2005The charge of an alpha particle can be neutralized by
- NECO 2004Which of the following statements is true of nuclear fission?
- NECO 2003In 90 seconds, the mass of a radioactive element reduces to 1/16 of its original value. Determine the half- life of the element.
- NECO 2003^ 226 88 Ra ^ 222 86 Rn + X + Energy. The equation above represents a nuclear decay of radium isotope. What is X?
- NECO 2003Which of the following statement(s) is/are correct about the isotopes of an elements? They have the same I. chemical properties II. nucleon number III proton…
- NECO 2002Which of the following is/are TRUE of nuclear fission? I. A heavy nucleus is split into two nuclei of comparable masses. II. Two light nuclei are joined…
- NECO 2001What is X in the equation given below? 42He + 94Be → 126C + X
- NECO 2001In 24 days a radioactive isotope decreases in mass from 128g to 2g. What is the half-life of the radioactive material?
- NECO 2001Which scientist discovered natural radioactivity?
- NECO 2000An element of nuclear number A and proton number Z emits an alpha particle from its nucleus. The nucleon number and the proton number of the new element formed…
- NECO 2000Which of the following is used in a nuclear reactor to slow down fast moving neutrons?
- NECO 2000Which of the following is/are TRUE of nuclear fission? I. A heavy nucleus is split into two nuclei of comparable masses II. Two light nuclei are joined together…
- NECO 2000The half-life of a radioactive substance is 2 seconds. Calculate the decay constant.
- NECO 2000The helium isotope ^3 2He
- NECO 2000Which of the following is/areNOT affected by a magnetic field? I. Alpha particle II. Cathode rays III. Neutrons
Years with Structure of the nucleus questions in DeeepSolve's question bank
From the past questions DeeepSolve holds, not a count of everything the exam body has set.
- 2009
- 2005
- 2004
- 2003
- 2002
- 2001
- 2000