Final answer:
The electron configuration for each element is as follows: Hydrogen: 1s^1, Lead: [Xe]4f^14 5d^10 6s^2 6p^2 5f^14 6d^10 7s^2 6p^2 2s^2, Carbon: 1s^2 2s^2 2p^2, Sulfur: [Ne] 3s^2 3p^4, Iron: [Ar] 4s^2 3d^6, Gold: [Xe] 4f^14 5d^10 6s^2 6p^6 5f^14 6d^10 7s^2 6p^6 4f^14 5d^10 6s^2, Magnesium: [Ne] 3s^2, Arsenic: [Ar] 4s^2 3d^10 4p^3.
Step-by-step explanation:
To write out the electron configuration for each element, we need to follow the Aufbau principle. This principle states that electrons fill orbitals in order of increasing energy. The orbital filling order is given by the periodic table. Let's go through the electron configuration for each element:
Hydrogen (H):
Hydrogen has 1 electron. The electron configuration of hydrogen is 1s1.
Lead (Pb):
Lead has atomic number 82, indicating it has 82 electrons. The electron configuration of lead is [Xe]4f145d106s26p25f146d107s26p22s2.
Carbon (C):
Carbon has 6 electrons. The electron configuration of carbon is 1s22s22p2.
Sulfur (S):
Sulfur has 16 electrons. The electron configuration of sulfur is [Ne]3s23p4.
Iron (Fe):
Iron has atomic number 26, indicating it has 26 electrons. The electron configuration of iron is [Ar]4s23d6.
Gold (Au):
Gold has atomic number 79, indicating it has 79 electrons. The electron configuration of gold is [Xe]4f145d106s26p65f146d107s26p64f145d106s2.
Magnesium (Mg):
Magnesium has atomic number 12, indicating it has 12 electrons. The electron configuration of magnesium is [Ne]3s2.
Arsenic (As):
Arsenic has atomic number 33, indicating it has 33 electrons. The electron configuration of arsenic is [Ar]4s23d104p3.