There is one calcium, one carbon atom, and three oxygen atoms. Therefore, there are 5 atoms in CaCo3
well there is a certain margin error. If you rounded any number you will not get the right measurement. if you round up when multiplying you will get a larger number then the answer really is and Vise versa.
Another M1V1=M2V2
<span>V1=1.0L </span>
<span>M1=6.00M </span>
<span>M2=0.500M </span>
<span>V2=?? </span>
<span>(6.00M)(1.0L)=(0.500M)V2 </span>
<span>Solve for V2 you get 12L or 12000mL </span>
A. Oxygen-18 is the correct reference for this isotope. As this notation requires the name of the element followed by a dash and the mass number of that corresponding element. The mass number is obtained by adding the number of protons and neutrons together as in this example.
Explanation:
Different atoms binds their outermost shell electrons with different amount of energy.
The amount of energy required to remove an electron from an atom is the ionization energy.
- Ionization energy measures the readiness of an atom to lose electrons.
- From the given problem, we can infer that in group O the ionization energy decreases down the group.
- Helium has the highest ionization energy.
- Down a group on the periodic table, ionization energy decrease because:
- atomic radii increases down the group.
- there is an increasing shielding/screening effect of inner shell electrons on the outermost shell electrons.
Learn more:
Ionization energy brainly.com/question/2153804
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