The outermost shell in an atom is also known as the valence shell. When an atom is able to donate or obtain electrons to obtain a noble gas electron configuration, it is said to be stable. Generally, metals are electron donors and non metals are electron acceptors.
An atom in which the outermost energy level is more than half full tends to fill its outermost energy level by adding one or more needed electrons. Such an atom forms a negative ion.
The question is somewhat vague. If the question were written as an atom contains seven electrons in the outermost energy level and that outermost shell is a p-shell then the atom is a halogen. If the atom contains seven electrons in the outermost energy level and that outermost shell is a d-shell or f-shell then the atom is a metal.
Atoms form chemical bonds to achieve a full outermost energy level by sharing, gaining, or losing electrons. Valence electrons are the electrons in the outermost energy level of an atom, and having a full outermost energy level makes the atom more stable. This stability is achieved when there are eight electrons in the outermost energy level, known as the octet rule.
A neutral atom of magnesium has 2 electrons in its outermost energy level. Magnesium has a total of 12 electrons, with 2 electrons in the first energy level and 8 electrons in the second energy level. The outermost energy level is the second energy level in the case of magnesium.
The outermost electrons, found in the highest energy level, are the most likely to be lost in a magnesium atom. Magnesium has 2 electrons in its outermost energy level, so it tends to lose these electrons to achieve a stable electron configuration.
Outermost energy level is full if there are 8 electrons in the valence shell.
An atom with single electron in its outermost shell
It is the most stable element in the universe and does not need anymore electrons. Its outermost energy level is full.
they need to either gain or lose electrons to create an octet. It depends on the atom. an octet is when an atom has a full outermost energy level
The electrons in the outermost level are known as the valence electrons.
Sulfur has 6 electrons in its outermost energy level.
valence electrons are the electrons in the outermost energy level