the second statement is the correct one quarks are needed to balance charges in all subatomic particles such as neutrons, protons and electrons
Answer:
In analytical chemistry, the titrant is a solution of known concentration that is added (titrated) to another solution to determine the concentration of a second chemical species. The titrant may also be called the titrator, the reagent, or the standard solution.
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# Cary on learning
Explanation:
Two different elements have similar chemical properties when they have the same number of valence electrons in there outermost energy level. Elements in the same column of the periodic table have similar chemical properties.
1. They expand to fill their containers
2. Their molecules move the most rapidly