Oxygen is found:
No, oxygen is not a metalloid. Oxygen is a nonmetal, located in group 16 of the periodic table.
The troposphere has more volume of oxygen compared to the stratosphere. This is because the troposphere is the layer of the atmosphere closest to the Earth's surface, where most atmospheric gases are concentrated, including oxygen. The stratosphere, located above the troposphere, has lower concentrations of oxygen.
Oxygen exits the plant through the stomata. Water vapors also exits through the stomata.
Elements with the highest oxide numbers are typically located in groups 16, 17, and 18 on the periodic table. Examples include oxygen (group 16), fluorine and chlorine (group 17), and the noble gases (group 18).
No, oxygen-17 and oxygen-18 are different isotopes of oxygen. They differ in the number of neutrons each atom contains. Oxygen-17 has 8 protons and 9 neutrons while oxygen-18 has 8 protons and 10 neutrons.