Sodium ion
Sodium, Na, becomes a single positive cation Na+
Sodium loses its one valence electron to become Na+
When a sodium atom loses a valence electron, it becomes a positively charged ion called a sodium ion (Na+). When a sodium atom gains a valence electron, it becomes a negatively charged ion called a sodium ion (Na-).
None. The electrons are not in the nucleus for any atoms. They swirl around the nucleus in space but do not enter the nucleus. If electrons are squeezed into nuclei of atoms through gravity in supermassive star collapses, they fuse with protons and become neutrons. Sodium has 11 protons and usually 12 neutrons in their nuclei but no electrons.
Sodium only has one valence (outer shell) electron. It wants to fulfill the octet rule and have a full (8 valence electrons) outer shell. It could do this by adding 7 electrons to the one that's already there, or it could simply lose the one electron it has because the next shell is already full. But since it is "easier" for sodium to lose a single electron and requires the least amount of energy, this is what it does.
The valence electrons are either lost to another atom or the sodium atom gains valence electrons, it really depends on if what the sodium atom is bonding with has a lot or a little of valence electrons. The structure doesn't change though, just the number of valence electrons change. The nucleus is never changed when an ion is formed.
Sodium loses its one valence electron to become Na+
Calcium loses 2 valence electron to become ionized.
it becomes positive
all elements want to have a full valence shell and when an atom loses electrons it is said to become a cation.
When a sodium atom loses a valence electron, it becomes a positively charged ion called a sodium ion (Na+). When a sodium atom gains a valence electron, it becomes a negatively charged ion called a sodium ion (Na-).
Magnesium is a group 2A element, and has 2 valence electrons. Thus, for it to become an ion (Mg^2+) is loses those 2 valence electrons.
If a sodium atom loses its only valence electron, it becomes a sodium cation (Na+). This is because it has lost a negative electron, leaving behind a positively charged ion.
Boron becomes positive when it loses electrons. Boron has three valence electrons and tends to lose these electrons to achieve a stable electron configuration similar to a noble gas. When boron loses its three valence electrons, it forms a B3+ ion, which has a positive charge.
None. The electrons are not in the nucleus for any atoms. They swirl around the nucleus in space but do not enter the nucleus. If electrons are squeezed into nuclei of atoms through gravity in supermassive star collapses, they fuse with protons and become neutrons. Sodium has 11 protons and usually 12 neutrons in their nuclei but no electrons.
sodium belongs to IA group element in periodic table.hence valence is one
A sodium atom has 1 electron in its valence shell, while a chlorine atom has 7 electrons in its valence shell. When sodium reacts with chlorine to form sodium chloride, the sodium atom loses its 1 electron to achieve a stable octet configuration, while the chlorine atom gains this electron. The resulting sodium chloride molecule has 8 electrons in the valence shell of the chlorine atom.
Calcium loses its two valence electrons to become Ca 2+ ion.