Zinc, in commerce also spelter, is a chemical element; it has the symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. Zinc is, in some respects, chemically similar to magnesium, because its ion is of similar size and its only common oxidation state is 2. Zinc is the 24th most abundant element in the Earth's crust and has five stable . The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest mineable amounts are found in Australia, A..
MacDonald, Macdonald, and McDonald are Anglicised forms of the Scottish Gaelic and Irish Gaelic name MacDhòmhnaill, which in modern Gaelic is approximated as McConnell. It is a patronym where Mac means "son" and Dhòmhnaill means "of Dòmhnall". The personal name Dòmhnall is composed of the elements domno "world" and val "might", "rule". According to Alex Woolf, the Gaelic personal name is probably a borrowing from the BritishDyfnwal.