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6. An element Y has a total of three shells, with six electrons in its valence shell.
i. What will be the atomic number of this element ?
ii. In which period will you find this element ?
iii. Name another element which belongs to the same group as this element.
iv. Identify the preceding and the following elements in the same period.
v. State the formula of its oxide and chloride.

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Solution

The solution is as follows:

Element - X
Electronic Configuration - 2, 8, 6

(i) Atomic number = 2+8+6 = 16

(ii) Period = 3

(iii) Oxygen

(iv) Preceding element - Phosphorous
Following element - Chlorine

(v) Oxide = SO₂
Chloride = SCl₂

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The solution is as follows: Element - X Electronic Configuration - 2, 8, 6 (i) Atomic number = 2+8+6 = 16 (ii) Period = 3 (iii) Oxygen (iv) Preceding element - Phosphorous Following element - Chlorine (v) Oxide = SO2 Chloride = SCl2

The solution is as follows:

Element - X
Electronic Configuration - 2, 8, 6

(i) Atomic number = 2+8+6 = 16

(ii) Period = 3

(iii) Oxygen

(iv) Preceding element - Phosphorous
Following element - Chlorine

(v) Oxide = SO₂
Chloride = SCl₂