<span>In the cells of the human body,oxygen molecules are used directly in a process that releases energy</span>
Answer:
No (If we are talking about pure water)
Explanation:
Water is a compound. Each molecule is made up of only 2 Hydrogen atoms and 1 Oxygen atom.
Answer:
An elementary particle that is identical with the nucleus of the hydrogen atom, that along with the neutron is a constituent of all other atomic nuclei, that carries a positive charge numerically equal to the charge of an electron.
Example:
The nucleus of a hydrogen atom or the H+ ion is an example of a proton. Regardless of the isotope, each atom of hydrogen has 1 proton; each helium atom contains 2 protons; each lithium atom contains 3 protons and so on.
Answer:
n = 3 to n = 2
Explanation:
The Rydberg formula for electron transitions in the hydrogen atom is given by:
1/λ = Rh( 1/n₁² - 1/n₂² )
where
1/λ = wavelength of the transition,
Rh = Rydberg constant,
n₁ and n₂ are the principal quantum numbers of the energy levels involved in the transition with n₂ greater n₁.
The energy of the photon is given by
E = hc/λ
where
h= Planck´s constant
c= speed of light
Therefore the energy is inversely proportional to the wavelength and the term ( 1/n₁² - 1/n₂² ) will be greater ( 1/2² - 1/3² ) than (1/3² - 1/4² ) ( 0.14 vs 0.05 ). So the transition from n= 3 to n=2 will result in the emission of the highest energy photon in this question.
Answer:
Explanation:
The last number in a measured number is always an estimated digit.