5.2 moles of nitrogen gas are contained in a 3.4 L container. If pressure is kept constant what is the final molar amount of gas present in the container if gas is added until the
volume has decreased to 2000 mL?

particle   p is an electron and particle q is a neutron

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72

the awnser is group 12