No. Atoms are usually considered as spheres so the top or the bottom of one depends entirely on what direction you are viewing it from.
The protons are at the center of the atom. An atom does not have a top or bottom.
It decreases as the atom radius gets larger, so it decreases from top to bottom.
The number of electrons in the atom increase from left to right and then from top to bottom.
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As I understand it scientists took an educated guess at the Hydrogen Atom and all the rest were extrapolated from there.
The protons are at the center of the atom. An atom does not have a top or bottom.
As we move from top to bottom, number of shells increases and nuclear attraction decreases. Hence nucleus is not able to attract the element at bottom.
It decreases as the atom radius gets larger, so it decreases from top to bottom.
electronegativity represents the size of an atom
The number of electrons in the atom increase from left to right and then from top to bottom.
It would be 9 on top, 4 on bottom and then Be.
The diameter (height) of an atom ranges from about 0.1 to 0.5 nanometers. The sizes of atoms vary depending on how high or low their atomic mass (number) is. The larger the atomic mass, the larger the atom.
it depends on which atom it is but you can figure out the number by looking at the periodic table. for example, sodium Na has an atomic mass of 11 (top no.) and a relative atomic mass of 23 (bottom no.), the top number represents the number of protons (and electrons as they are in equal amount) and the bottom number represent the number of neutrons and protons, so, if you take these away from each other you will be left with the number of neutrons the atom has. hope this helps :)
is it on the top or bottom?????/
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Numerator on top; denominator on the bottom.
it is on the bottom of your arm