The two elements. A and B have 17 ekectrons ech in their atom.
Element A ha 35 nucleons while clemcnt B has 33 nucleons.
What is the relationship between these two elements? Explain.
b) Wnte down the clectronic configuration of A
c) Identify the nalurc of clement
Metal
i. Non-metal
Metalloid
d) Element A combines with another element X having atomie
numbers. Write down the chemical formulae of the compound
Anjos Z has number of ekedness 10. determine ils atomie
member
b) The element X shows vanable valencies 2 and 3 and farms
xdo. Write the real formule of the units
Write the chemical termula of the compound when X combines
with sulphate and carbonate
Answers
The relationship between the elements A and B is that of isotopes.
• Number of electrons in element A = 17
Number of nucleons in element A = 35
• Nucleons is the total number of protons and neutrons present in the nucleus of an element.
• Number of electrons in element B = 17
Number of nucleons in element B = 33
Therefore, number of protons + number of neutrons in B = 33
• The elements A and B differ in their number of nucleons.
• This means the relationship between these two elements is that of isoptopes.
• Isotopes are elements having the same atomic number but different mass numbers. They also have the same number of electrons.
• Thus, isoptopes have the same number of protons but different number of neutrons in their nuclei.
• Elements A and B have the same number of protons but different number of neutrons. That is why their nucleons are different in number.
• A and B are isoptopes.