As we know that mass of the box is given as
m = 9.5 kg
acceleration of the box is given as
so by Newton's II law we can say
now we can substitute all the values in it
So it required 9.5 N force to slide it
insulator
semiconductor
superconductor
Answer:
An insulator
Explanation:
Insulators have a very high resistance because the electrons of the insulator are bounded strongly with the nucleus. Hence it requires more voltage to move an electron from the valence band to the conduction band.
An element from group 2 will form ionic bonds with a nonmetal group 13-17, therefore the correct answer is option C.
When electrons are moved from the atoms of one element to the atoms of another, creating positive and negative ions, ionic bonds are created. Ionic bonds are only between metals and non-metals occur. There can not be the formation of the ionic bond between two metals.
These ionic bonds are also known as electrovalent bonds as they are formed because of the transfer of the electrons.
There must be one electropositive element that can release electrons which is metal as metals have extra electrons in their valence shell.
There must be one electronegative element involved during the formation of the ionic bond, which is a nonmetal as nonmetals have few electrons left to complete their outermost shell.
As given in the problem element of group 2 are metals and will form ionic bonds with the nonmetal elements of the group 13-17.
Thus, the correct answer is option C.
Learn more about the ionic bond from here
#SPJ6
Answer:
c
Explanation:
it is c because I just took that test on Usa Test Prep and got a 100%
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