Answer:
27
Explanation:
The number of protons in atom is the atomic number. For a neutral atom that has not lost or gained any electron, it is the same as the number of electrons.
The atomic number is used in perfect ordering of the periodic table and it is the basis of the periodic law.
Protons are positively charged subatomic particles that reside in the in the nucleus of an atom with the neutrons.
The answer is the first option.
"They perform well only at very low temperatures."
Despite of advantages of Superconductors such as power and cost efficiency, these conductors have drawbacks. Semiconductors have restricted operation range of operating temperatures. They are required to work at very low temperatures.
<span>Control of physiological activities. Homeostasis involves the steady state and regulation of the body's internal environment. Irritability is the ability to respond to a stimulus.</span>
Type of fungi feed on waste or dead organic material is Saprophytic..