Answer:
tempature of the person, check carbon levels in the house or place where the person is.
Explanation:
They differ in the number of their neutrons. Hydrogen doesn’t contain neutron, deuterium has one, and tritium has two neutrons. The isotopes of hydrogen have mass numbers of one, two, and three.
Answer:
The symbol which represents atomic structure is called atomic symbol. An electron is a negatively charged particle. Proton is a positively charged particle, located at the center of the atom. Neutron is an ellectrically neutral or charge less particle located in the nucleus of the atom.
Carbon is 6, and Magnesium is 12.
They are called "energy levels".