Question

An atom has 4 electrons and 4 protons and 4 neutrons. The atom is electrically neutral. Which difference in the properties of protons and electrons affects the electrical neutrality of the atom?
Score: 0.5
A)Electrons are 2000 times lighter than protons
B) Electrons and protons have the same charge and mass
C) Electrons and protons have opposite charges of the same magnitude
D)Electrons are present in the outer side of the atom compared to the protons​

Answer 1

Explanation:

The bacteria take gaseous nitrogen from the air in the soil and feed this nitrogen to the legumes; in exchange the plant provides carbohydrates to the bacteria. This is why legume cover crops are said to "fix" or provide a certain amount of nitrogen when they are turned under for the next crop or used for compost.