A concept map for four types of intermolecular forces and a certain type of bond is shown.
No
Yes
Are ions
present?
No
No
Are molecules
with permanent
dipoles present?
Are polar
molecules
present?
Yes
Yes
Yes
Is H atom
bonded to F, O. or
Natom?
No
A
B
C
D
E
Compare the relative strength of the two forces B and C. Explain how you determined this comparison by identifying the
forces.

A bonding that occurs between high electronegative atoms such are N, F, O and H atoms, is called a hydrogen bond. Hydrogen bond is a very strong bond. (C)

If hydrogen bonds are not formed between H atoms and N, F, O atom, then the atoms interact through dispersion forces (also known as london dispersion forces). Dispersion forces are weak and they are temporary forces formed by overlapping of orbitals. (B)

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

the objects have the same charge is correct.

nathan lee