Answer:The approximate atomic mass of lead is 207.24 amu.
Explanation:
Abundance of isotope (I) = 1.4% = 0.014
Atomic mass of the Isotope (I) = number protons + number of neutrons = 82 + 122 = 204 amu
Abundance of isotope (II) = 22.1 % = 0.221
Atomic mass of the Isotope (II) = number protons + number of neutrons = 82 + 125 = 207 amu
Abundance of isotope (III) = 24.1% = 0.241
Atomic mass of the Isotope (III) = number protons + number of neutrons = 82 + 124 = 206 amu
Abundance of isotope (IV) = 52.4% = 0.524
Atomic mass of the Isotope (IV) = number protons + number of neutrons = 82 + 126 = 208 amu
Average atomic mass of an element =

Average atomic mass of lead =

The approximate atomic mass of lead is 207.24 amu.
Answer:
Dehydration reactions can be defined as the chemical reactions in which a water molecule is eliminated from the reactant molecule. The process of combination of two molecules with the elimination of water molecule is called dehydration synthesis.
I can form two compounds if I combine calcium, hydrogen and oxygen in five minutes.
<h3>What is a compound?</h3>
A compound is formed by the combination of atoms. It is important to note that the same atoms can be combined in different ways to produce new compounds.
I can form two compounds if I combine calcium, hydrogen and oxygen in five minutes.
Learn more about compounds:brainly.com/question/13516179?
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