The ATOM decreases in size when it loses an electron and increases when electrons are added.
When a neutral atom loses an electron, it becomes a positive ion. The loss of an electron reduces the electron-electron repulsion, causing the remaining electrons to be more strongly attracted to the nucleus. This contraction in electron cloud typically results in a smaller ionic size compared to the neutral atom.
It shrinks loosing an electron.
When a sodium atom loses an electron to become a sodium ion, it becomes smaller in size. This is because by losing an electron, the atom loses a negatively charged particle, causing the remaining protons in the nucleus to have a stronger pull on the electrons, resulting in a more compact arrangement.
It grows smaller in size.
The atom would stay the same size because it would still have the same amount of energy levels. The mass of the atom would be slightly less though.No, an atom shrinks when loosing an electron.There are less electrons ('-'charges) left that are attracted by the same number of protons ('+'charges) in nucleus, so the atraction per electron is stronger.
When a magnesium ion loses an electron, it forms a magnesium ion with a 2+ charge. This occurs because magnesium typically has 2 electrons in its outer shell, and losing one electron leaves it with a full outer shell, resulting in greater stability.
they decreased in size but did not decrease in number
The atom would stay the same size because it would still have the same amount of energy levels. The mass of the atom would be slightly less though.No, an atom shrinks when loosing an electron.There are less electrons ('-'charges) left that are attracted by the same number of protons ('+'charges) in nucleus, so the atraction per electron is stronger.
Just making sure, first off, that you realize electrons are not in the nucleus. They float in the empty space around the nucleus, of an atom. But if your asking what happens to the atom once it loses an electron, the atom then has a positive charge, and becomes a positive ion. The atomic size[of the atom alone] becomes smaller due to the greater pull the protons are able to have on the electrons.
The ionic radius of Na+ is smaller than F- because, when sodium loses an electron to form Na+, it loses an electron in a higher energy level, resulting in a smaller radius. Conversely, when fluorine gains an electron to form F-, it fills its valence shell, resulting in a larger radius due to electron-electron repulsion.
Aluminum atoms have a larger size due to the presence of more electrons and the associated electron cloud that surrounds the nucleus. When aluminum loses three electrons to form Al³⁺ ions, it becomes positively charged and experiences a significant reduction in electron-electron repulsion. As a result, the ion's electron cloud shrinks, making Al³⁺ approximately one third the size of the neutral aluminum atom. This reduction in size reflects the loss of the outermost electron shell and the increased effective nuclear charge acting on the remaining electrons.
A cation is an element that loses electrons in order to achieve a pseudo-noble gas electron configuration:Hence, when a cation loses electrons it has an uneven number of (p+) and (e-). The protons then pull harder on the electrons or (e-) because there is more positive charged subatomic particles than there are negatively charged subatomic particles. The remaining electrons are closer to the nucleus making the cation smaller in size than the original atom.