Uranium-238 is found only in igneous or volcanic rocks. They can date a very ancient fossil also but carbon cannot date and ancient fossil. Trees are not very ancient. Carbon-14 can be used to measure only fossils of recent age.
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.
Learn more about valence electrons:
brainly.com/question/371590
#SPJ1
