Answer: 121.7558 amu
Explanation:
Average atomic mass of the unknown element =
(Mass of isotope 1 x Relative Abundance of Isotope 1) + ( Mass of Isotope 2 x Relative Abundance of Isotope 2)
(120.9 x 0.5721) + (122.9 x 0.4279) = 69.16689 + 52.58891
Average mass of the unknown element = 121.7558 amu
Hydrogen on sharing its one electron with chlorine results in formation of hydrogen chloride molecule and chlorine and hydrogen complete its octet by sharing one electron of each and thus forming a single covalent bond by sharing of two electrons.
Transverse wave is <span>a wave vibrating at right angles to the direction of its propagation.
In short, Your Answer would be Option B
Hope this helps!</span>
A rain gauge<span> (also known as an udometer, pluviometer, or an ombrometer) is an instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time.
i hope that helps</span>
Answer: Chemical Elements List with atomic number and chemical symbol
Explanation:
I attached a Word document with the chemical elements list for easier use.
Notice that the elements are order by atomic number.
