3. Two elements R and S combine to form
the compound RS^2.Which of the following
statements is true?

A:An energy change occurs when RS2
is formed.

B :RS^2 will have a colour in between those of
R and S.

C:RS^2 have the properties of both
R and S.

D:The ratio of R:S atoms is 2:1.

C:RS₂ have the properties of both  R and S.

Explanation:

A compound formed between the two elements R and S to form RS₂ will have properties that reflects both R and S.

This is chemical change and the atoms combine will influence how the the product is formed.

Compounds are substances that are composed of two or more kinds of atoms joined together in a definite grouping.

they are both synthetic elements

explanation:

d

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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