Density of a substance is its mass per unit volume. It is calculated by dividing mass by volume. The SI unit of kilogram per cubic meter (kg/m³), however it might be given in other measurements such as g/cm³.
1 g/ml or 1 g.cm³ = 1000 kg/m³ ( cubic centimeter can be alternately called a milliliter)
Therefore, 0.789 g/ml will be equivalent to 0.789 ×1000 = 789 kg/m³
Carbon always has six protons, as its atomic number is six. Carbon twelve would have six neutrons (six protons plus six neutrons) in the nucleus of the atom. So the atomic number is 12
Answer:
D
Explanation:
gas are well separated with no regular arrangement and spreaded all over. liquid are close together with no regular arrangement and slightly spreaded. solid are tightly packed, usually in a regular pattern and not spreaded at all.