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Electrons present in the last/outermost shell are called…….
a) bonding electrons 

b) anti-bonding electrons
c) valence electrons          

d) free electrons

c

Which electrons take part in chemical reaction?
a) bonding electrons 

b) anti-bonding electrons
c) valence electrons          

d) free electrons

c

Explanation:The electrons present in the last or outermost shell are called valence electrons



Which electrons determine the chemical properties of an element?
a) all electrons     

b) anti-bonding electrons
c) valence electrons          

d) free electrons

c

Which electrons will help in arrangement of element in periodic table?
a) valence electrons

b) anti-bonding electrons
c) all electrons                     

d) free electrons

a

Alfred Nobel discovered which of the following element?
a) Helium                                             

b) sodium
c) Nobelium                        

d) Californium

c

Explanation:Alfred Bernhard Nobel was a Swedish chemist, engineer, inventor, businessman, and philanthropist. He is best known for having bequeathed his fortune to establish the Nobel Prize, though he also made several important contributions to science, holding 355 patents in his lifetime


The atomic number of Nobelium is …….
a) 92      

b) 102                   

c) 112    

d) 10

b