Use the periodic table to answer the following questions.
(a) Identify an element with five electrons in the outer subshell.
(b) Identify an element that would tend to lose two electrons.
(c) Identify an element that would tend to gain two electrons.
(d) Identify the group having metal, non-metal, liquid as well as gas at the room temperature

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(a)

Which elements have the following electronic configuration? (Use only the periodic table.)
1s², 2s², 2p⁵

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(a)

In p-block elements form acidic, basic and amphoteric oxides. Explain each property by giving two examples and also write the reactions of these oxides with water.

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(a)

Predict the formulas of the stable binary compounds that would be formed by the combination of the following pairs of elements.
(a) Lithium and oxygen
(b) Magnesium and nitrogen
(c) Aluminium and iodine
(d) Silicon and oxygen
(e) Phosphorus and fluorine
(f) Element 71 and fluorine

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(a)

Predict the formulae of the stable binary compounds that would be formed by the combination of the following pairs of elements.
Aluminum and iodine

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(a)

Predict the formulae of the stable binary compounds that would be formed by the combination of the following pairs of elements.
Element 71 and fluorine

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(a)

Discuss the main features of long form of the periodic table. What are the advantages of long form of periodic table?

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(a)