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.

a, b, c and d

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b, c, d and e

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a, c, d and e

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b, d, e and f

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Solution

The correct option is C a, c, d and e
The elements on the left-side of the periodic table are relatively electron deficient (i.e., they have few valence electrons) whereas The elements on the right-side of the periodic table are not electron deficient (i.e., they have more valence electrons)

Alkaline Earth Metals Magnesium (Mg) reacts with water vapor to form a magnesium hydroxide and hydrogen gas. Beryllium (Be) is the only alkaline earth metal that does not react with water. This is due to its small size and high ionization energy in relation to the other elements in the group.

Metallic oxides are basic in nature because they react with dilute acids to form salt and water. They also react with water to form metal hydroxides which are alkaline in nature because these metal hydroxides release OH- ions in solution. ... Therefore, non-metallic oxides would be acidic in nature.

The melting point of period three elements increases from sodium to silicon and decreases from silicon to argon. In general, melting point increases across a period up to group 14 then decreases from group 14 to group 18.

So statements A, C, D, E are false.

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Similar questions

(a) Electropositive nature of the element(s) increases down the group and decreases across the period.
(b) Electronegativity of the element decreases down the group and increases across the period.
(c) Atomic size increases down the group and decreases across a period (left to right).
(d) Metallic character increases down the group and decreases across a period.

On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.

Name the most electronegative element :

Q. Question 48 (b)
(a) Electropositive nature of the element(s) increases down the group and decreases across the period
(b) Electronegativity of the element decreases down the group and increases across the period
(c) Atomic size increases down the group and decreases across a period (left to right)
(d) Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.

Name the most electronegative element.

Q. Question 48 (a)
(a) Electropositive nature of the element(s) increases down the group and decreases across the period
(b) Electronegativity of the element decreases down the group and increases across the period
(c) Atomic size increases down the group and decreases across a period (left to right)
(d) Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.

Name the most electropositive element among them

Question 48 (c)
(a) Electropositive nature of the element(s) increases down the group and decreases across the period
(b) Electronegativity of the element decreases down the group and increases across the period
(c) Atomic size increases down the group and decreases across a period (left to right)
(d) Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.

Name the element with smallest atomic size.

Q. Question 48(e)
(a) Electropositive nature of the element(s) increases down the group and decreases across the period
(b) Electronegativity of the element decreases down the group and increases across the period
(c) Atomic size increases down the group and decreases across a period (left to right)
(d) Metallic character increases down the group and decreases across a period.
On the basis of the above trends of the Periodic Table, answer the following about the elements with atomic numbers 3 to 9.

Name the element which shows maximum valency.

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