Answer:
46.96 amu
Explanation:
Isotopes are different kinds of same elements. The difference between two isotopes of the same element is the number of neutrons.
To get the relative atomic mass, we take into consideration the masses of the different isotopes. This is done by multiplying their abundances by their masses. They are then added together to get the relative atomic mass of the element.
Let the isotopic mass of 47Z be x
45.36 = [80/100 * 44.96] + [20/100 * x]
45.36 = 35.968 + 0.2x
0.2x = 45.36 - 35.968
0.2x = 9.392
x =9.392/0.2 = 46.96 amu
When you boil water, you aren't changing the elements. You're just making water vapor. However, when you burn paper, it becomes carbon (mostly). So physical changes will not change the substance, only chemical changes will.
One of the products of photosynthesis is carbon dioxide
The answer is A. Remember that meiosis is like sexual reproduction and mitosis is like asexual reproduction. Hope this helps!
Answer: The shape of a molecule is dependent on the arrangement of the terminal atoms around the central atom.
Explanation:
In the VSEPR, the terminal atoms are treated as electron pairs arranged around the central atom in such a way as to minimize repulsion between them. The number of terminal atoms around the central atom are counted as the electron pairs. Our major concern is how these electron pairs arrange themselves around the central atom.