Oxygen is a nonmetal with atomic number of 8 and mass number of 16.
The element oxygen was discovered in 1772 and 1774 by Scheele and Priestly working independently. The properties of the element was first described by Lavioser.
Oxygen is a member of group 16. It has eight protons, eight electrons and eight neutrons. It is found in period 2 of the periodic table.
The physical properties of oxygen are as follows;
- It is a colorless, odorless gas
- It supports burning
- It is neutral to litmus
The chemical properties of oxygen are;
- It accepts two electrons to form the oxide ion
- It can bond covalently to other nonmetals
- It can participate in ionic bonding with metals
Learn more about oxygen: brainly.com/question/12984241
Apartheid is basically a place in African were during this the black Africans were separate from the white Africans and during this many mind worker police officers were killed because they had an unfair ruling system
Why did it take so long to ratify the american constitition? on the 17th september 1787 the new constitution was puclished as a result of the philadelphia convention.
I don't have a direct answer, but this should help. https://www.shmoop.com/study-guides/literature/uglies/shay
I believe the answer is: <span>Correlation vs. causation
</span><span>Correlation in this context refers to whether the variables that exist in the research is connected with one another.
Causation refers to whether the variables that included directly cause the change in subjects.</span>