Answer:
The answer is B, natural selection is the process whereby <u>organisms better adapted to their environment tend to survive and produce more offspring</u>. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about <u>evolution</u>.
The least malleable would be potassium
Out of the options, "Iron" is the most dense here.
In short, Your Answer would be Option D
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Electrons group themselves in pairs in their energy levels. To calculate the number of electrons allowed in any energy level, find the square of the number representing the energy level and multiply it by two. Using this formula, atoms can have two electrons in their first energy level, eight in the second, and eighteen in their third. The quantity of electrons at each level grows as the number of the energy level increases.
Pt195 having 78 atomic number is the daughter nucleus produced when Au195 undergoes electron capture.
An unstable isotopes can undergoes radioactive decay to form a more stable isotopes . Initial isotopes is called parent nuclide and the resultant isotopes from radioactive decay is called the daughter nuclide There are several radioactive decay like alpha decay , beta decay , gamma decay , electron capture etc .
In electron capture , the atom have only one less which is daughter isotopes than electron than atomic number of parent isotopes.
learn more about isotopes,
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