Answer:
Explanation:
Atoms generally tend to achieve there octet configuration (i.e have there outermost shell completely filled) and become stable. They do this by participating in chemical bonding (majorly by transferring or sharing electrons). Atoms (of elements) that have very few electrons on there outermost shell (like the group 1 atoms; example is sodium) and atoms that have almost completely filled outermost shell (like the group 7 elements; example is fluorine) are highly reactive because it is easier to lose an electron to become stable and also easier to gain an electron to become stable. However, elements in group zero of the periodic table do not participate in bonding and resist chemical reactions because they have a completely filled outermost shell and are hence stable.
Since, the groups of the periodic table shows the number of electrons in the outermost shell of each member (of a particular group), the chemical properties of each group is usually almost similar.
Answer:
last one
Explanation:
The elements classified as metalloids are boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.
1st one is Science and the 2nd one is Bias
As you add more acid to the solution the amount of dissociation increases to compensate for it. But since the acid is weak, it will never have more ions dissociate than are in the concentrated solution being added. % ionization is the concentration of dissociated H+ ions divided by the initial concentration of the weak acid.
% ionization = [H+] / [weak acid] x 100%
As you increase the concentration of the weak acid, the numerator increases more than the denominator so the percentage goes down.
Answer:
0.375 M
Explanation:
molarity = number of moles of solute/ number of L solution = 3.00 mol/8.00 L=
= 0.375 mol/L = 0.375 M