Chemistry
The atom of an element A has 6 electrons in its M shell.
(a) Write the electronic configuration of element A.
(b) What is the atomic number of element A?
(c) Is it a metal or a non-metal?
(d) What type of ion will be formed by an atom of element A? Write the symbol of the ion formed.
(e) What could element A be ?
(f) Draw the orbital structure of A and its ion.
Atomic Structure
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Answer
(a) [2, 8, 6], as it has three shells — K, L, M.
(b) 16, as atomic number is the total number of electrons so, 2+8+6 = 16
(c) Non-metal, as it has 6 electrons in the valence shell and will accept 2 electrons to complete its octet.
(d) Anion, A2-, as element A has 6 valence electrons so it has a valency of -2 and it will take two electrons, complete its octet and become a negatively charged ion.
(e) Sulphur, as sulphur also has the electronic configuration of [2, 8, 6].
(f) Orbital structure of A and its ion is shown below:
Answered By
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Related Questions
An element X has 2 electrons in its M shell, it forms bond with an element Y which has 7 electrons in its third orbit.
(a) Write the formula of the compound formed.
(b) Which nearest inert gas electronic configuration will element X and Y acquire?
(c) Show using an orbital diagram the formation of compound between X and Y.
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(a) What does the figure 9 indicate?
(b) What does the figure 4 indicate?
(c) What is the number of protons in atom Y?
(d) What is the number of neutrons in atom Y?
(e) What is the number of electrons in atom Y?
(f) How many electrons are there in the outermost shell of an atom of element Y?
(g) Write the symbol of ion formed by an atom of element Y?
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(c) The electronic configuration of nitrogen is (2, 5). How many electrons in the outer shell of a nitrogen atom are not involved in the formation of a nitrogen molecule ?
(d) In the formation of magnesium chloride (by direct combination between magnesium and chlorine), name the substance that is oxidized and the substance that is reduced.
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(a) How many electrons, protons and neutrons do A, B and C have?
(b) Which two atoms have the different number of nucleons?
(c) Name the term which can be used for A and C atoms.
(d) Define the term mentioned in part (c) above.