The isotopes of the same element in the given options are 21/10 and 22/10 (option A and B).
<h3>What is an isotope?</h3>
Isotopes are two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.
The above definition shows that atoms of isotopes will have the same atomic number but a different mass number.
Isotopes of the same elements have different number of neutrons and this causes the difference in mass numbers.
According to this question, 21/10 and 22/10 are isotopes of the same element because they have the same atomic number.
Learn more about isotopes at: brainly.com/question/11680817
#SPJ1
If you collected 7.0 grams of something the percentage recovery would be 70% (7/10 x 100).
^
^
^
A percentage recovery is something like that
Answer:
<em>D</em><em>.</em><em>They have properties similar to those of their component elements.</em><em> </em>
Explanation:
When elements are joined, the atoms lose their individual properties and have different properties from the elements they are made of .
Tarnish is Ag2S-silver sulfide and the oxidation state of silver is +1
Cl-3.16, S-2.58, Na-0.93, Rb-0.82