How does an atom with too many neutrons relative to protons undergo radioactive decay?
2 answers:
Answer:
The correct answer is:'<em>by emitting a beta particle'.</em>
Explanation:
An atom with too many neutron relativity in comparison to number of proton will under radioactive decay by the means of beta-decay.
Beta-decay is a radioactive decay process in which a neutron gets converted to into proton and electron as a beta-particle with (-1)charge.
So , by emitting a beta-particle an atom with more number of neutrons than protons will under radioactive decay.
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Answer:
1s² 2s²2p³
Explanation:
If the atom has seven electrons, it is Element 7 (nitrogen).
In the Periodic Table, you count the electrons in all the subshells up to
No. 7.
In the first Period, you have filled the 1s level (2 electrons).
In the second Period, you have filled the 2s subshell (2 electrons) and put three electrons in the 2p subshell.
Thus, the electron configuration is
1s² 2s²2p³
Note how the superscripts tell you the number of electrons in each subshell: <em>2 + 2 + 3 = 7</em>.
