Tt's impossible to answer this without the notation.
Thorium-232 is typically indicated with the notation "Th-232."
The ion notation for sulfur with 18 electrons would be S2-. This means that sulfur has gained two extra electrons to achieve a full octet, giving it a -2 charge.
You can determine the number of unpaired electrons in an element by examining its electron configuration. Unpaired electrons are found in the outermost energy level, and you can count them by looking for half-filled or singly occupied orbitals in the notation of the element.
No, "Ca plus 2" is not correct notation for an ion. The correct notation would be Ca^2+, which represents a calcium ion with a 2+ charge due to the loss of two electrons.
The orbital notation for sulfur (S) is 1s^2 2s^2 2p^6 3s^2 3p^4. This notation represents the distribution of electrons in the various energy levels and sublevels of the sulfur atom.
Orbital notation shows how the electrons are arranged in the orbitals of the sublevels. Electron configuration shows only how many electrons are in each sublevel.
Rests
2, as indicated by its position in periodic column 2.
oxygen has 6 valence electrons as indicated by the 6A above the group oxygen is in
Thorium-232 is typically indicated with the notation "Th-232."
Staff lines indicated pitch.
The ion notation for sulfur with 18 electrons would be S2-. This means that sulfur has gained two extra electrons to achieve a full octet, giving it a -2 charge.
The position of notes on the lines and spaces of the staff
The shorthand notation for the electron configuration of germanium is [Ar]4s2 3d10 4p2. This notation indicates that germanium has the same electron configuration as argon (Ar) up to its 18 electrons, followed by the 4s and 3d electrons before the 4p electrons.
The orbital notation for oxygen is 1s^2 2s^2 2p^4. This indicates that oxygen has two electrons in the 1s orbital, two electrons in the 2s orbital, and four electrons in the 2p orbital.
Extract from the mass number (in the hyphen notation) the atomic number.
All notation is 'secular'. There are no religious ways of notating music. Even early notation indicated a degree of rhythm, which later became more precise.