The electron is negatively charged, while the nucleus is positively charged.
Protons and electrons, two of the subatomic particles, each have an electrical charge of one or the other. On the other hand, neutrons lack a charge. Protons and neutrons make up the nucleus (or core) of an atom. Where an atom belongs on the Periodic Table is essentially determined by the number of protons in its nucleus, or "atomic number." The features of an atom are also largely determined by the number of protons in the nucleus.
Hence, electron is negative charge particle and proton is positive charge particle both present in equal proportion to neutral atom.
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Krypton. The atomic radius decreases as you go across a period.
Here’s a simplified explanation.
The <em>protons</em> in the nucleus <em>repel each other</em>. The <em>neutrons provide the “glue”</em> that holds the nucleus together and prevents it from flying apart.
The “glue” is the strong nuclear force. It is strong but extremely short range. It falls off extremely rapidly as the p-n distance increases.
A <em>neon atom</em> has 10 protons. There are three stable isotopes, with 10, 11, and 12 neutrons.
With fewer than 10 protons, the glue is not strong enough to hold the nucleus together.
If there are more than 12 neutrons, the average p-n distance is great enough that the glue has again become too weak.
<em>Gold</em> has one stable isotope. It contains 79 protons and 118 neutrons.
If there are fewer than 118 neutrons, the proton repulsions will be too strong for the strong force. If there are more than 118 neutrons, the average p-n distance will be large enough that the glue will again be too weak to hold the nucleus toge
ther.
The answer is A because the time wouldn't affect the weather that much depending on the circumstances.
The density would be 2.5g/cm^3
