chromium (Cr) and copper (Cu)
chromium has 4s1,3d5 instead of 4s2,3d4 and copper has 4s1,3d10 instead of 4s2, 3d9
Two
There are two unpaired electrons predicted for the ground state configuration of bismuth (Bi).
Rhodium
The ground state electronic configuration of an element X can be determined by using the periodic table. Each element has a unique arrangement of electrons in its atoms. For example, the ground state electronic configuration of carbon (C) is 1s2 2s2 2p2.
Sodium is the element that glows yellow when its electrons fall into the ground state. This phenomenon is commonly observed in sodium-vapor lamps.
Two
The configuration [He] 2s2 2p2 describes the element in the 2nd row (since He finishes the first row) in the second of the 'p' columns, #14. This corresponds to the element carbon.
3
There are two unpaired electrons predicted for the ground state configuration of bismuth (Bi).
For the ground state electron configuration of an element, we look at the filling of orbitals up to that element's atomic number. Tantalum (Ta) has an atomic number of 73, belonging to the transition metals, and has a ground state electron configuration of [Xe] 4f14 5d10 6s2 6p6 6d3 7s2. Counting the number of electrons in the partially filled orbitals (5d and 6d), there are 3 unpaired electrons.
Rhodium
Transition metals have ground-state electron configurations that differ from the predicted ones due to the exchange of electrons between the ns and (n-1)d subshells. This exchange stabilizes the d orbitals, leading to configurations that are closer to half-filled or fully filled d subshells. Examples include chromium ([Ar] 3d^5 4s^1) and copper ([Ar] 3d^10 4s^1).
[Kr] 4d10 5s1Just by looking at your periodic table you should see that this element is silver.The [Kr] indicates it follows krypton on the table and you just need to count to '10'+'1' = '11' to come out there.Atom numbers Kr=36, Ag=47, difference 11 (of coarse)
An iron atom is a different element than a sodium atom because it has a different ground state electron configuration. In fact, any atom that differs from any other atom in ground state electron configuration is a different element.
The ground state electron configuration of Lanthanum is [Xe] 5d1 6s2.
The ground state electron configuration for the element with the atomic number corresponding to the keyword "fe" is Ar 3d6 4s2.
The ground state electronic configuration of an element X can be determined by using the periodic table. Each element has a unique arrangement of electrons in its atoms. For example, the ground state electronic configuration of carbon (C) is 1s2 2s2 2p2.