Option (b) is the correct answer. Explanation: The chemical formula of calcium sulphide is CaS. Since there are two valence electrons in calcium and six valence electrons in sulfur. So, to achieve stability, calcium will donate its two extra electrons to the sulfur atom. Therefore, calcium sulfide is an ionic compound. Thus, we can conclude that there will be only two lone pairs of electrons in a calcium sulfide molecule.
0 Explanation: Calcium sulphide has the molecular formula CaS. Calcium is a group 2 metal and sulfur is a group 6 nonmetal, and they form an ionic compound, not a molecule. So, calcium will give sulfur 2 electrons, so both will have 8 electrons in their valence shell. All these electrons will be in pairs, so there will be 0 pairs of lone electrons.
2 Explanation: Calcium is the element of the second group and the fourth period. The electron configuration of calcium is – 2, 8, 8, 2 or There are 2 valence electrons of calcium.
Sulfur is the element of the sixteenth group and the third period. The electron configuration of sulfur is – 2, 8, 6 or There are 6 valence electrons of sulfur.
The Lewis structure is designed so that the octet of each atom is complete. Thus, calcium loses two electrons to sulfur and sulfur accepts these electrons to form the ionic bond.
Calcium sulfide forms when 2 valence electrons of calcium are released and are gained by the sulfur atom. Thus, valence electrons are represented by dots in the Lewis structure. The structure is shown in the image below. According to the pattern, the lone pairs in the pattern are: -2
Answer: The number of lone pairs present in the Lewis dot structure of calcium sulfide is 4. Explanation: Lewis dot structure: It shows the bonding between the atoms of a molecule and also shows the unpaired electrons present in the molecule. In the Lewis point structure, the valence electrons are represented by a “point”. The given molecule is, As we know, Calcium has ‘2’ valence electrons and Sulfur has ‘6’ valence electrons. Therefore, the total number of valence electrons in = 2 + 6 = 8 According to the Lewis point structure, there are 4 numbers of bond electrons and 4 numbers of unbonded electrons. For stability, the metallic calcium will donate its two extra electrons to the sulfur atom. Thus, calcium sulfide is an ionic compound. The Lewis point structure is shown below.
Answer 6
the answer is d. 4 hope this too, the more points you give, the faster your questions will be answered
Answer 7
A. one B. two C. three D. four E. none The answer is D which is four Ca gave 2 electrons to the sulfur with six which makes 8 e-, or 4 pairs. Thank you for posting your question here hope the answer helps you.
Idk because I’m not in school lol sorry I think it’s 3
The answer is four, Ca has given up 2 electrons to sulfur with six, which makes 8 e-, or 4 pairs.
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