that its a chain of the environment keeping balance
Covalent bond (molecular bond): a chemical bond that involves the sharing of electron pairs between atoms.
1. Non-polar covalent bond: the electrons are shared equally between atoms
ex: CH₄ (methane)
2. Polar covalent bond: the electrons are not shared equality between atoms
ex: H₂O (water)
Ionic bond: a chemical bond formed between two ions with opposite charges
ex: NaCl (sodium chloride)
To know the difference between ionic and covalent bonding, one must first understand the chemical difference between sharing electrons and being attracted by charges to one another.
Every atom wants to fulfill the octet rule, or, getting to a stable 8 electrons in its outermost shell. (Having 8 valence electrons)
Atoms in covalent bonds do this by sharing electrons. A good analogy to express this would be if there was a toy that we both wanted, but there was only one of them. Instead of you or I having it to ourselves, we would share. This is what atoms in covalent bonds do.
Atoms in ionic bonds do this by transferring electrons. Sodium loses an electron and chlorine gains an electron (becoming chloride). This is like you taking the toy to yourself. Now because sodium is now a positive ion and chloride is a negative ion, the two come together because opposite charges attract.
I really hope this helps!
Best wishes!:)
The nurse should explain that myelosuppression is a common side effect of cancer treatments. The healthcare provider should explain to the patient that it is better to reduce or stall the treatment for a while because it would be more harmful to them if they continued.
Answer:
The correct answer will be- true (assuming the student is asking the true or false)
Explanation:
Biodiversity refers to the diversity of the biological world. The biological world is composed of the living organisms and their associated concepts.
The biodiversity represents the variety of organisms and species in an ecosystem, variety in the ecosystems and the genes which contribute to the variation in the organisms along with controlling the traits of organisms. The biodiversity is the major factor which has maintained the natural sustainability on Earth.
Thus, true is the correct answer.
