Living together. Threekingham, or Threckingham, is both a village and parish 7 miles due south of Sleaford and 11 miles east of Grantham. Swaton parish and Billingborough parish lie to the east, Folkingham parish to the west and Osbournby parish to the north west.iving together. Threekingham, or Threckingham, is both a village and parish 7 miles due south of Sleaford and 11 miles east of Grantham. Swaton parish and Billingborough parish lie to the east, Folkingham parish to the west and Osbournby parish to the north west.
The atomic number of an element is equal to the number of protons in the nucleus of its atom. The atomic number is also known as proton number of the element. Further, in an atom, number of protons is equal to the number of electrons. Hence, atomic number is also equal to the number of electrons in an atom of the element. Thus,
The atomic number is what distinguishes one element from another in nature. For example, hydrogen has an atomic number of 1. An atom of hydrogen has a single proton and a single electron. Helium has an atomic number of 2.A single helium atom has 2 protons and 2 electrons. Copper has an atomic number of 29, so it contains 29 protons and 29 electrons.The atomic weight (sometimes called atomic mass) of an atom is approximated by the sum of the number of protons and the number of neutrons in the nucleus of the atom.he atomic number is what distinguishes one element from another in nature. For example, hydrogen has an atomic number of 1. An atom of hydrogen has a single proton and a single electron. Helium has an atomic number of 2.