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 of an element is equal to the number of protons in each atom, and defines the element. For example, all carbon atoms contain 6 protons in their atomic nucleus; so the atomic number of carbon is 6.s a special case, the three naturally occurring isotopes of the element hydrogen are often specified as H for 1 H (protium), D for 2 H (deuterium), and T for 3 H (tritium). This convention is easier to use in chemical equations, replacing the need to write out the mass number for each atom.