Answer:
C
Explanation:
The early ideas of the atom states that the indivisible object is hollow or is a solid object with nothing inside. The later discoveries or works of the scientists states that inside the atoms are the subatomic particles which are the electrons, protons, and neutrons.
Answer:
Al(s) + 3HCl(aq) → AlCl₃(aq) + 3/2H₂(g).
Explanation:
- We should apply the law of conversation of mass to balance any chemical reaction; that the no. of atoms in the reactants side is equal to that in the products side.
So, the balanced equation is:
<em>Al(s) + 3HCl(aq) → AlCl₃(aq) + 3/2H₂(g).</em>
I think the answer might be C. Planets. Not exactly sure though... Let me know if this was correct!! :-)
The element of Sodium in the periodic table has a large atomic radius than magnesium due to less atomic attraction on the last electron.
<h3 /><h3>What is the atomic radius?</h3>
The atomic radii are given as the distance between the last electron in the shell to the center of the nucleus.
In the periodic table, on moving from the left to right there has been a decrease in the atomic radius of the atom with the addition of an electron in the same shell forming an increase in the nuclear attraction faced by the last electron.
Thus, Sodium has a large atomic radius than magnesium due to the presence of a less nuclear attraction over the last electron.
Learn more about atomic radii, here:
brainly.com/question/14086621
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