Question 1:
Figure 2.10 shows the atomic structure of nitrogen.
(a) Name X.
(b) State the subatomic particles found in the nucleus of nitrogen atom.
(c) Compare X and subatomic particles mentioned in (b) from the aspect of relative charge and relative mass.
Answer:
(a) Electron
(b) Proton and neutron
(c)
Figure 2.10 shows the atomic structure of nitrogen.
(a) Name X.
(b) State the subatomic particles found in the nucleus of nitrogen atom.
(c) Compare X and subatomic particles mentioned in (b) from the aspect of relative charge and relative mass.
Answer:
(a) Electron
(b) Proton and neutron
(c)
Question 2:
• Electrons move around the nucleus in shells.
• Nucleus of an atom consists of protons and neutrons.
The statements above show the information on an atomic structure model.
(a) Which scientist identified it?
(b) Draw this atomic structure model.
Answer:
(a) James Chadwick
(b)
• Electrons move around the nucleus in shells.
• Nucleus of an atom consists of protons and neutrons.
The statements above show the information on an atomic structure model.
(a) Which scientist identified it?
(b) Draw this atomic structure model.
Answer:
(a) James Chadwick
(b)