Explain how the structure of atoms changes as you move through the periodic chart. describe the subatomic structure including how electrons affect an atom's ability to interact with another atom and form bonds. explain the discrete energy levels in which electrons orbit the nucleus of an atom. explain how isotopes differ from each other, and explain why they can be used in biology.

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Explanation:

In the periodic table, as you move from the left to the right, the atomic number will increase, so the number of electrons, protons and neutrons, that mean the atoms are going to have more electrons in the last energetic level. For example, all the elements of group 1 have 1 electron in the outside layer, the family 2 will have 2 electrons, and so.

The elements with 1,2 or 3 electrons in the outside layer can give their electrons easily to join to another atom, meanwhile the elements that have 5,6 or 7 electrons in the outer layer, tend to attract electrons when they join with another atom.

The isotopes are atoms of the same element but with different number of neutrons, and because of this difference can be used in biology to detect traces of minerals in the body because some isotopes can react with colorants to be analyze.

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