How many protons, electrons, and neutrons does an atom with atomic number 50 and mass number 125 contain? a. 75 electrons, 50 protons, 50 neutrons
b. 120 neutrons, 50 protons, 75 electrons
c. 70 neutrons, 75 protons, 50 electrons
d. 50 protons, 50 electrons, 75 neutrons

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.

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shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.