Open Question
Draw orbital-filling diagrams for the following atoms. Show each electron as an up or down arrow, and use the abbreviation of the preceding noble gas to represent inner-shell electrons. (a) Rb (b) W (c) Ge (d) Zr
Ch.5 - Periodicity & Electronic Structure of Atoms
Chapter 5, Problem 109
Identify the following atoms: (a) It has the ground-state electron configuration [Ar] 4s2 3d10 4p1.
Verified step by step guidance1
Step 1: Understand the electron configuration notation. The notation [Ar] 4s^2 3d^10 4p^1 indicates that the atom has the same electron configuration as Argon (Ar) up to the 3p^6 level, and then additional electrons are added in the 4s, 3d, and 4p orbitals.
Step 2: Count the total number of electrons. Argon has 18 electrons. The additional electrons in 4s^2, 3d^10, and 4p^1 are 2 + 10 + 1 = 13 electrons. Therefore, the total number of electrons is 18 (from Argon) + 13 = 31 electrons.
Step 3: Determine the atomic number. The atomic number of an element is equal to the number of protons, which is the same as the number of electrons in a neutral atom. Therefore, the atomic number is 31.
Step 4: Identify the element. Use the periodic table to find the element with atomic number 31. This element is Gallium (Ga).
Step 5: Verify the electron configuration. Check that the electron configuration [Ar] 4s^2 3d^10 4p^1 matches the known configuration for Gallium to ensure the identification is correct.
Related Practice
Textbook Question
Draw orbital-filling diagrams for atoms with the following atomic numbers. Show each electron as an up or down arrow, and use the abbreviation of the preceding noble gas to represent inner-shell electrons. (a) Z = 25 (b) Z = 56 (c) Z = 28 (d) Z = 47
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Textbook Question
How many unpaired electrons are present in each of the following ground-state atoms?
(a) O
(b) Si
(c) K
(d) As
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Textbook Question
Write the symbol, give the ground-state electron configuration, and draw an orbital-filling diagram for each of the following atoms. Use the abbreviation of the preceding noble gas to represent the inner-shell electrons. (a) The heaviest alkaline earth metal
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Textbook Question
Write the symbol, give the ground-state electron configuration, and draw an orbital-filling diagram for each of the following atoms. Use the abbreviation of the preceding noble gas to represent the inner-shell electrons.
(c) The heaviest actinide metal
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Textbook Question
Given the subshells 1s, 2s, 2p, 3s, 3p and 3d, identify those that meet the following descriptions. (a) Has l = 2
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