Many elements show very strong similarities to each other.<span>For example, lithium (Li), sodium (Na), and potassium (K) are all soft, very reactive metals.
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Answer:
Looks like they're all right
Your answer would be Quarts .
Answer:
Mg2+
NH4+
are cations because of there positive charge
Explanation:
-He is a noble gas and have no formal charge therefor it is not a cation
-cl- and o2- have a negative formal charge so they are called anion
<span>As far as I remember, cell-mediated immunity differs from humoral immunity in that </span>they respond differently to invaders
