Answer:
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Explanation:
Answer:
B. False
Explanation:
All the atoms of an element are not entirely the same no matter where they are found.
The phenomenon of isotopy brings a different perspective to the identity of an element.
- Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their various nuclei.
- Isotopes of an element have the same electrons but differ in their masses.
- They also differ in their chemical properties.
Molar mass CaCl₂ = 111.0 g/mol
number of moles:
n = mass of solute / molar mass
n = 85.3 / 111.0
n = 0.7684 moles of CaCl₂
M = n / V
0.788 M = <span>0.7684 / V
</span>
V = 0.7684 / 0.788
V = 0.97512 L
hope this helps!
Explanation:
The elements Fluorine (F),Chlorine (Cl) and Iodine (I) are all part of the same <u>Group</u> ( i.e, Group 17 ) on the periodic table.
The result of Rutherford's gold foil experiment was that most of the particles went straight through the foil without being deflected.
However, a few of the particles were deflected by relatively large angles.