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 always equal to the number of protons. The Mass Number of an element is equal to the protons added to the neutrons. The element Sodium has an atomic number of 11 and an average atomic mass of 22.98 which makes the mass number 23. Therefore . An atomic number of 11 means this atom will have 11 protons. A mass number of 23 means 23 - 11 this atom will have 12 neutrons. Since this atom is neutral the positive protons must be equal to the negative electrons.