It might be carbon, I think this because of the pencil having graphite which is made of carbon.
The number of valence electrons present in an atom with an atomic number of 7, an atomic charge of +1, and an atomic mass of 14 amu is 5.
In order words, the element has 5 valence electrons. This element is confirmed nitrogen.
<h3>What is valence electron?</h3>
Valence electrons are those electrons which reside in the outermost shell of an atom of an element. That being said, they are electrons which are found at the last shell of electron orbit.
So therefore, the number of valence electrons present in an atom with an atomic number of 7, an atomic charge of +1, and an atomic mass of 14 amu is 5.
In order words, the element has 5 valence electrons. This element is confirmed nitrogen.
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In cell division, the S-phase is characterized by the duplication of chromosomes. The correct option is B.
<h3>What is S-phase?</h3>
Cell division is the division of parent cells into two daughter cells under favorable conditions.
S-phase is the synthetic phase that is responsible for the duplication of the genome along with the accumulation of essential nutrients required by cells for division.
In cell division, the S-phase is characterized by the duplication of chromosomes.
Thus, the correct option is B.
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<span>Wind is the horizontal movement of air. Every single wind is generated by the uneven heating of Earth's surface, which triggers convection currents in motion. Convection currents on a huge level cause global winds; convection currents on a small scale cause local winds. The global wind prototype is also known as the "General Circulation" and the surface winds of each hemisphere are divided into three wind belts, those are, “Polar Easterlies” from 60-90 degrees latitude, “Prevailing Westerlies” from 30-60 degrees latitude and “Tropical Easterlies” or “Trade Winds” from 0-30 degrees latitude.</span>
