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Consider the following statements : (I...

Consider the following statements :
(I)n All isotopes of an elements have the same number of neutrons.
(II) only one isotope of an element can be stable and non-radioactive.
(III) All elements have isotopes
(IV) All isotopes of Carbon can form chemical compounds with Oxygen - 16

A

III and IV only

B

II ,III and IV only

C

I, II and III only

D

I,III and IV only

Text Solution

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The correct Answer is:
A
All elements have isotopes. All isotopes of carbon can form chemical compounds with oxygen - 16.
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Isotopes of an element have the same atomic number.

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In which group all the elements do not have same number of valence electrons?

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Which of the following are the characteristics of isotopes of an element? (i) Isotopes of an element have same atomic masses. (ii) Isotopes of an element have same atomic number (iii) Isotopes of an element show same physical properties. (iv) Isotopes of an element show same chemical properties.

A : Isotopes of an element have almost similar chemical properties R : isotopes have same electron configuration .

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