Calcium is more likely to lose electrons because it has two electrons in its outermost shell, making it easier for calcium to achieve a stable electron configuration by losing these two electrons to become a positively charged ion.
A full outer electron shell. Atoms tend to be more stable when they have a full valence shell, which typically contains eight electrons. This stability makes it less likely for the atom to either lose or gain electrons.
If an atom has 3 electrons, there are 2 electrons in the inner shell, leaving 1 electron in the outer shell. Atoms tend to acquire or lose electrons to achieve a full outer shell, typically 8 electrons. In this case, it is more likely for the atom to lose its 1 outer electron to achieve a stable configuration.
An element's most likely oxidation state is often related to its valence electrons because elements tend to gain or lose electrons to achieve a stable electron configuration. The number of valence electrons an element has can determine how many electrons it will gain or lose to reach a full or empty outer shell, resulting in a specific oxidation state.
Fluorine is likely to gain one electron to achieve a full outer shell and attain stability. This gives it a negative charge as it gains an extra electron.
Nonmetallic elements have a higher electronegativity, which means they have a stronger attraction for electrons. This makes them more likely to gain electrons rather than lose them in chemical reactions.
Lose
Group 13 has an oxidation number of 3+ so it is more likely to lose electrons than gain them, but it is possible that it gains them
Calcium is more likely to lose electrons because it has two electrons in its outermost shell, making it easier for calcium to achieve a stable electron configuration by losing these two electrons to become a positively charged ion.
When atoms lose or gain electrons, they form ions. These are charged particles.
They have relatively full valence shells.
Se will gain electrons
Lose electrons is oxidation. To gain electrons is reduction.
Silicon (Si) can gain or lose 4 electrons. It can either gain 4 electrons to have a stable octet configuration or lose 4 electrons to achieve a stable configuration.
If you mean Metals... No, they do not gain electrons, they actually lose electrons because it is a lot easy for them to lose them so they can gain stability much faster.
A full outer electron shell. Atoms tend to be more stable when they have a full valence shell, which typically contains eight electrons. This stability makes it less likely for the atom to either lose or gain electrons.
it loses electrons