Sonogram is a device that transmit high frequencies to project certain images (ultrasound) , while on the other hand, frequency spectrum uses certain frequencies to transmit data or information ( radio, cellphone).
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Physics contributes to the technological infrastructure and provides trained personnel need to take advantage of scientific advances and discoveries.
Physics is an important element in the education of chemists, engineers and computer scientists as well as practitioners of the other physical and biomedical sciences .
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Answer:
Explanation:
Oxygen has an atomic number of 8,
Then, it has eight electrons revolving round its nucleus.
And since it a neutral atoms.
Number of neutron ≈ number of electron
Number of proton = Number of electron.
Then, the number of proton is 8
So, we can find it mass number of molecular weight
Molecular weight = number of proton + number of neutron
Molecular weight = 8 + 8
Molecular weight = 16g/mol
So, the correct answer is D
An atom of oxygen has 8 protons.