Covalent bond is a s bond in which the electrons are shared between each other.
Answer: Option D
<u>Explanation:</u>
The elements when they form molecules, they satisfy their valence needs and form certain bonds that make them stable. The presence of 8 electrons in the outer most orbital of an element makes the element stable.
Thereby to balance this need the elements either transfer the electrons between each other, gain electrons or share electrons in case of which formation of a covalent bond happens.
When an object is heated the motion of the particles increases as the particles become more energetic. If it is cooled the motion of the particles decreases as they lose energy.
