If zinc has an atomic number of 30 and a mass number of 65 what is the correct number of protons neutrons and electrons ?

Explanation:

Name                 Zinc

Atomic Mass            65.39 atomic mass units

Number of Protons   30

Number of Neutrons      35

Number of Electrons      30

protons 30

neutrons 35

electrons 30

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.