Valence electrons5[10] Quantum numbers –n3[10] –ℓ1[10] –mℓ1[10] –ms+1/2[10] Electron configuration (noble gas configuration)[Ne] 3s23p3[1] Atomic structure –Number of electrons15[11] –Number of neutrons16[11] –Number of protons15[11] ...
How many electrons are there in the third shell of sodium, Na (atomic number 11)? (a) None. (b) One. (c) Two. (d) Three.Write the symbol for the nuclide with 47 protons and 61 neutrons and identify the element.Consider the ion Boron^{4+} (Z = 5, one...
The chemical reactivity of an element is largely determined by a. the number of protons in the nucleus of the atom. b. the number of neutrons in the nucleus of the atom. c. the number of electrons in the outer or Which ...