For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you. atom subshell from which electron removed to form +1 cation subshell to which electron added to form -1 anion H 1s He 1s 1s 2s Fe K M П П 0 ×

Hypophosphorous acid, H3PO2, has the structure (HO)PH2O. in which two H atoms are bonded to the P atom, and one H atom is bonded to an O atom.  For each bond to an H atom, decide whether it is polar or nonpolar.  Assume that only polar-bonded H atoms are acidic.  Write the balanced equation for the complete neutralization of hypophosphorous acid with sodium hydroxide.  An 800.0 ml sample of H3PO2 requires 22.00 mL of 0.7850 M NaOH for complete neutralization.  What is the molarity of the H3PO2 solution?  Electronegativity P = 2.19. H =2.20, O= 3.44

For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you. atom H Si Be Sc subshell from which electron removed to form +1 cation 1s A 0 subshell to which electron added to form -1 anion X 1s 0 0

Assuming that the ion formed has a noble gas configuration, write a chemical equation that shows the formation of a bromide ion from a neutral bromine atom. Represent electrons as e^-

For each atom in the table below, write down the subshell from which an electron would have to be re electron would have to be added to make a -1 anion. The first row has been completed for you. subshell from which electron removed to form +1 cation subshell to which electron added to form -1 anion atom H 1s Hg Rb Не

For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you. atom H Ca Li Sc subshell from which electron removed to form +1 cation 1s 0 subshell to which electron added to form -1 anion X 1s 0

Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with the sulfide ion, S2-.   Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with Ar.

Which of the following is true of the halogens in periods two and three when comparing them to other elements in the same period? O Halogens have higher ionization energy than other elements within their periods. The electronegativity of halogens in higher than other elements within their period. O Halogens have larger atomic radii than other elements within their period. O Halogens have less ionizatrion energy than other elements within their periods

What is the chemical formula of the following molecular compound (covalent) Dinitrogen tetroxide? O N204 O NO O N402 O N20

The octet rule is generally followed for anions of elements located where on the periodic table? O post transition metals and transition metals O actinide elements O lanthanide elements O Group1A, Group 2A metals, and Aluminum O Group 4A - 7A non-metal elements