Question

An element along with its atomic number and mass number is represented as ${}_Z{X}^A$ where X is the symbol of the element, Z is the atomic number and A is the mass number. Represent elements A, B, C, D and E with its atomic number and mass number from the given data.

Elements	Number of protons	Number of electrons	Number of neutrons
A		x	y
B	a		b
C		m	m + 2
D		t	t
E	n		n + 1

Answer 1

Elements	Number of protons	Number of electrons	Number of neutrons	Representation of element
A	x	x	y	${}_x{A}^{x+y}$
B	a	a	b	${}_a{B}^{a+b}$
C	m	m	m+2	${}_m{C}^{2(m+1)}$
D	t	t	t	${}_t{D}^{2t}$
E	n	n	n+1	${}_n{E}^{2n+1}$