A nucleus X decays by emitting a β⁺ particle to form a new nucleus, ²³₁₁Na.
(a)State the number of protons and the number of neutrons in nucleus X.
Options
Available practice: 53 of 60 marks. Parts 2(b)(iv), 4(b)(iii), 6(b)(v) await marking support. Scores cover available parts only.
(b)State one similarity between a β⁺ particle and a β⁻ particle.
(c)State the quark composition of a meson.
A hadron consists of two down quarks and a charm quark.
(d)Determine the charge of the hadron. Show your working.