(a) Na (Z = 11) has outermost electronic Configuration = 3s1 (b) N (Z = 7) has outermost electronic Configuration = 2p3 (c) Fe (Z = 26) has outermost electronic Configuration = 3d6
Answer :
The element with atomic number 12 has same chemical properties as that of calcium.
This is because both of them have same number of valence electrons (2).
(a) Lithium (Li), sodium (Na), and potassium (K) have a single electron in their outermost shells.
(b) Magnesium (Mg) and calcium (Ca) have two electrons in their outermost shells.
(c) Neon (Ne),...
(a) The number of electrons present in the outermost shell of an atom is known as valence electrons. For e.g.,
the electronic configuration of Na (11) is ...
The elements in the first-half of the transition series exhibit many oxidation states with Mn
exhibiting maximum number of oxidation states (+2 to +7). The stability of +2 oxidation state increases...
Inner transition metals are those elements in which the last electron enters the f-orbital. The elements in which the 4f and the 5f orbitals are progressively filled are called f-block...
Two elements of group 1 are Sodium (Na) and potassium (K).
Their electronic configurations: Na = 2,8,1; K : 2,8,8,1
Similarity: Both have one valence electron.
Formula of their oxides: Na2O; K2O.
Inner transition elements have atomic numbers from 58 to 71 and 90 to 103. Hence, the atomic numbers 59, 95 and 102 are the atomic numbers of the inner transition...
