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11 grade chemistry others

What do these signs stand for on the periodic table Ta Os Rh?

(A) Metalloids

(B) Metals

(C) Non-metals

(D) Gas

Aniket Singh

10 Months agoGrade

1 Answer

Askiitians Tutor Team

Approved Tutor Answer10 Months ago

The symbols Ta, Os, and Rh on the periodic table represent specific elements: Tantalum, Osmium, and Rhodium, respectively. Each of these elements falls under the category of metals.

Element Overview

Tantalum (Ta): A hard, blue-gray metal used in electronics and medical implants.
Osmium (Os): A dense, bluish-silver metal known for its hardness and used in fountain pen nibs and electrical contacts.
Rhodium (Rh): A shiny, silvery-white metal often used in catalytic converters and jewelry.

Classification

Given their properties and uses, the correct answer to the question is (B) Metals. These elements are not metalloids, non-metals, or gases.

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(B) Mn₅₅

(C) Sn₁₁₉

(D) Al₃₀

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B. AlCl₃

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D. PH₃

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(B) They cannot be broken down into two or more simpler substances by physical means but by chemical means only.

(C) Properties of compounds differ from those of their elements.

(D) None of the above.

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A. NF₃
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(i) Ca

(ii) Au

(iii) Zn

(iv) Ag
A. (i) and (ii)
B. (ii) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)

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