Worksheets2sec online quiz
Total questions: 8
Worksheet time: 16mins
if the valence level of The element contains 6 electrons so the element …….
Inert and don’t form bonds
active and form two bonds
active and form 3bonds
non active and form double bond
the element B contains three principle energy levels and the last sublevel( s) half filled
so the element is…
active and lose 1e and its electronic configuration as same as Ar element
active and gains 2 e and its electronic configuration as same as Ar element
active and gains 7e and its electronic configuration as same as Kr element
active and lose 1e and its electronic configuration as same as Kr element
the following table shows the electronic configuration of some elements ,Study this table and answer
1- Which any couple of elements can be reacted ?
Y,T
Y,X
Y,Z
X,T
Which any couple cannot be reacted?
X,Z
Z,T
Y,T
X,T
element can form a diatomic molecule ?
T
Z
Y
X
e following figure show the dot distribution of some elements , study it and answer
the question?
1- The elements which combine together
X,E
Y,Z
X,Y
X,Z
All the following elements can not combine together except .
E,X
Z,X
Y,E
X,E
- Lewis dot model shows….
a)
d)
no, of protons in the nucleus b)no, of electrons of atom
no, of electrons in the outer level energy
no, of electrons which lose or share with atom
