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Variation of Metallic Properties

In the modern...

Question

In the modern periodic table, the metals are arranged from the leftmost side of the table. Select the correct option regarding property of metals.

A

Metals are electropositive in nature.

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B

Metals are electronegative in nature.

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C

Metals are both electropositive and electronegative.

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D

Metals form acidic oxides.

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Solution

The correct option is A Metals are electropositive in nature.
The ability of an element to lose electrons is termed electropositivity. Metals tend to lose electrons to form positive ions and are thus electropositive in nature.

Furthermore, metallic oxides react with water to form only alkali (basic oxides) or amphoteric substances (amphoteric oxides).

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Q. Metals tend to lose electrons and are electropositive in nature whereas non-metals tend to gain electrons and are electronegative. Identify the correct statement regarding the compounds formed by combining metals and non-metals.

Q. Metals tend to lose electrons and are electropositive in nature whereas non-metals tend to gain electrons and are electronegative. Identify the correct statement regarding metals and non-metals upon combination.

If noble gases are neither electropositive nor electronegative in nature, why they are considered as non metals?

Q. Pick false statements from the following.

(a) The left side of the periodic table consists of the most electronegative elements and the right side of the table consist of the most electropositive elements.

(b) Paramagnetic nature, variable oxidation states, coloured compounds are exhibited by transition elements.

(c) Alkalis and alkaline earth metals react with water, liberating oxygen.

(d) Elements with a more metallic character form acidic oxides and with more non-metallic character form basic oxides.

(e) Melting and boiling points of metals and non-metals increase and decrease respectively along with a group.

(f) Elements belonging to groups IA-VIIA are called representative elements.

Q. State true or false.
In the modern periodic table, metals are arranged on the leftmost side of the table and the rightmost side of the table contains non-metals.

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