The symbol of the ion having 12 protons and 10 electrons would be Mg²⁺ , therefore the correct answer is option A.
<h3>What is the atomic number?</h3>
An atom's atomic number is determined by the total number of protons it contains. Both the number of neutrons and the number of electrons contained inside an atom have no connection to the atomic number.
We must determine the symbol for the ion with 12 protons and 10 electrons according to the problem.
As is well knowledge, the magnesium atom, symbolized by Mg2+, contains 12 electrons and 10 protons.
Thus, the correct answer is option a.
To learn more about the atomic number from here, refer to the link;
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Answer:
Explanation:
1) Moc to wskaźnik czasu pracy w stosunku do czasu.
Moc = czas pracy / czas
Czas pracy = moc * czas
Podana moc = 200 kW = 200 000 Watów
Czas = 1,5 godziny = 1,5 * 3600 = 5400 sekund
workdone = 200 000/5400
Obróbka = 37,04 dżula
2) Moc = Gotowe / czas
Od zakończenia = Siła * Odległość
Moc = siła * Odległość / czas
Podana siła = 300 N.
Odległość = 2,5 m
czas = 0,5 min = 0,5 * 60 = 30 sekund
Moc = 300 * 2,5 / 30
Moc = 25 watów
3) Moc = Gotowe / czas
Czas potrzebny = praca / moc
Biorąc pod uwagę pracę wykonaną przez ciągnik = 10 MJ = 10 * 10 ^ 6 Dżuli
Moc = 100 kW = 100 000 watów
Czas wzięty = 10 ^ 7/10 ^ 5
Zajęty czas = 100 sekund
Answer:
<h2><em><u>C. It must reflect red light wavel</u></em></h2>
Explanation:
<em>The color of the object is reflected by the object other colors are absorbed by the object.</em>
Here <em>object appears in red color so red color is reflected by the object and other colors are absorbed.</em>
Answer:
Nearly all frequencies and wavelengths of electromagnetic radiation can be used for spectroscopy. Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation. Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.
