Number of proton K=19
so, 42 - 19 =23
then the answer in 19 protons and 23 neutrons
The answer is a Nucleus. Eukaryotic cells have nuclei while;e prokaryotic cells do not.
This measurement converter chart will help you figure out the liquid measurements called for.
0.5 ml = ⅛ teaspoon.
1 ml = ¼ teaspoon.
2 ml = ½ teaspoon.
5 ml = 1 teaspoon.
15 ml = 1 tablespoon.
25 ml = 2 tablespoons.
50 ml = 2 fluid ounces = ¼ cup.
75 ml = 3 fluid ounces = ⅓ cup.
Proton number = the atomic number (which is the smaller number
neutron number = the mass number (the bigger number) - the atomic number
number of electrons = the atomic number - the charge (it depends on the element but group 1 is +1 group 2 is +2 group 3 is +3 group five is -3 group six is -2 group seven is -1
i would solve the whole thing but its unclear hope this helps tho
Answer:
b. 4.4
Explanation:
pH is related to the concentration of H₃O⁺ through the following equation:
pH = -log([H₃O⁺]) = -log(4 x 10⁻⁵)
pH = 4.4
