Question

An element X is represented as 11X23 . Answer the given: i) Atomic number vi) Mass number ii) Number of protons vii) Number of electrons iii) Number of neutrons viii) Metal, non-metal or noble gas iv) Valency ix) Type of bond formed v) Identify the element x) Atomicity of the given element​

Answer 1

Answer:

Explanation:

from the representation,we can know that it is sodium(Na)

i) as its atomic no is 11(wrote at the bottom in representation)

ii)No of protons=11(always same as the atomic number)

iii))No of neutrons=mass number-atomic number=23-11=12

iv)valency=1(as no of valence electron is 1)

v)it is sodium or natrium (Na)

vi)mass number=23(written at the top in representation)

vii)no. of electrons=11(as a neutral atom)

viii)Metal

ix)Ionic bond

x)1 as it is monoatomic

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