An element has 13 protons in its nucleus. What is its atomic number?

What must happen before a body cell can begin mitotic cell division

What is the value of keq for the reaction expressed in scientific notation?

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.