We can tell what kind of chemical bond will be present based on the
a. atomic mass
b. the number of neutrons
c. the number of electrons in the outer shell
d. the chemical name

Option (c).

Explanation:

The chemical bond may be defined as the bond responsible for holding the chemical molecules together. Different types of chemical bond are vander walls, ionic bond, covalent bond and hydrogen bonds.

The types of the chemical formed by an element will depends on the number of electrons present in its outermost shell. For example: the molecules that contains two or three electrons in their outermost shell and can easily loose them to form the ioninc bonds. The elements that contain 4 electrons in their outermost shell will likely to form the covalent bond by mutual sharing of electron.

Thus, the correct answer is option (c).

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects