(a) Electropositive nature of the element 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 the period.
(d) Metallic character increases down the group and decreases across the period.
On the basis of the above trends of the periodic table, answer the following about the elements with atomic number 3 to 9.
Name the element which is a metalloid.

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Solution

Among the elements with atomic numbers 3 to 9, the element with atomic number $5$ (Boron) is a metalloid.
Boron (B) is a metalloid because it has characteristics of both metals and non-metal.
Hence, the correct answer is Boron.

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Similar questions

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(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.

Q. Question 48 (d)
(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 is a metalloid.

(i) Electropositive nature of the element(s) increases down the group and decreases across the period
(ii) Electronegativity of the element decreases down the group and increases across the period
(iii) Atomic size increases down the group and decreases across a period (left to right)
(iv) 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

Which is the element with the smallest atomic size

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Among the elements with atomic numbers 3 to 9, the element with atomic number 5 (Boron) is a metalloid.Boron (B) is a metalloid because it has characteristics of both metals and non-metal. Hence, the correct answer is Boron.

Among the elements with atomic numbers 3 to 9, the element with atomic number $5$ (Boron) is a metalloid.
Boron (B) is a metalloid because it has characteristics of both metals and non-metal.
Hence, the correct answer is Boron.