B. Covalent bond
C. Metallic bond
D. Ionic bond
Answer
B. covalent bond
Answer:
The correct answer is option B, that is, visible light.
Explanation:
The Sun is a prime source of ultraviolet rays. Although the Sun discharges all of the distinct types of electromagnetic radiation, 99 percent of its rays are in the form of ultraviolet rays, visible light, and infrared rays. The Sun emits radiation all through the electromagnetic spectrum, that is, from extremely high-energy X-rays to ultra-lengthy wavelength radio waves, and everything that comes in between. However, the peak of the emission takes place in the visible part of the spectrum.
B. actually double.
C. remain the same, plus interest.
D. be two hundred dollars.
The answer choice is B) It should actually double.
Considering it's been in the bank so long, it would have increased because of interest rates.
The volume = 6.71 L
Charles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
V₁=7 L
T₁=25 °C(room temperature) + 273 = 298 K
T₂=12.5(halved) + 273 = 285.5 K
The atomic number of sodium is 11 and the mass number of sodium is 24. Mass number is equal to the number of proton and neutron present. Therefore, 12 protons and 12 neutrons are present in sodium.
The total number of protons and neutrons in an atomic nucleus is known as the mass number, often known as the atomic mass number or nucleon number. In atomic mass units, it is roughly equivalent to the atom's atomic mass.
Because it indicates the mass of the entire number of protons and neutrons in an element, the mass number of an element is so termed. The atomic number and atomic mass of an element are often listed in periodic tables, along with the chemical symbols for each element.
The concept of mass number was developed by the brilliant scientist Ernest Rutherford, who in 1911 used the gold foil experiment to break atoms and find the nucleus.
Thus, Na²⁴₁₁ 24 represent the mass number and 11 represent the atomic number.
To learn more about mass number, follow the link;
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