Upgrade to remove ads
5.3 Electron Configuration
Terms in this set (29)
Write the ground state electron configurations for the following elements
d) rhenium (Re)
e) terbium (Tb)
A chlorine atom in its ground state has a total of seven electrons in orbitals related to the atom's third energy level. How many of the seven electrons occupy p orbitals? How many of the 17 electrons in a chlorine atom occupy p orbitals?
When a sulfur atom reacts with other atoms, electrons in orbitals related to the atom's third energy level are involved. How many such electrons does a sulfur atom have?
An element has the ground-state electron configuration [Kr]5s²4d¹⁰5p¹. It is part of some semiconductors and used in various alloys. What element is it?
In its ground state, an atom of an element has two electrons in all orbitals related to the atom's highest energy level for which n=6. Using noble-gas notation, write the electron configuration for this element, and identify the element.
aluminum; 3 electrons
An atom of an element has a total of 13 electrons. What is the element, and how many electrons are shown in its electron-dot structure?
This element exists in the solid state at room temperature and at normal atmospheric pressure and is found in emerald gemstones. It is known to be one of the following elements: carbon, germanium, sulfur, cesium, beryllium, or argon. Identify the element based on the electron-dot structure.
a) Si 1s²2s²2p⁶3s²3p²
b) F 1s²2s²2p⁵
c) Ca 1s²2s²2p⁶3s²3p⁶4s²
d) Kr 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶
Write out the full electron configurations for the following elements:
electrons in an atom's outermost orbital
Define valence electron
Single electrons with the same spin occupy each equal-energy orbital before additional electrons with opposite spins occupy the same orbital.
Describe the sequence in which ten electrons occupy the five orbitals related to an atom's d sublevel
Extend the Aufbau sequence through an element that has not yet been identified, but who's atoms would completely fill 7p orbitals. How many electrons would such an atom have? Write its electron configuration using noble-gas notation for the previous noble gas, radon.
c is correct;
a shows three two-electron orbitals;
b shows one three-electron orbital;
d has the wrong symbol
Which is the correct electron-dot structure for an atom of selenium? Explain.
Each orbital must contain a single electron before any orbital contains two electrons
In what sequence do electrons fill the atomic orbitals related to a sub level?
The orbital related to the 5s sub level has a lower energy than orbitals related to the 4d and 4f sublevels
Using Figure 5.24, explain why one electron in a rubidium atom occupies a 5s orbital rather than a 4d or 4f orbital
Valence electrons are the electrons in an atom's outermost orbitals; 2
What are valence electrons? How many of a magnesium atom's 12 electrons are valence electrons?
Light exhibits wavelike behavior in some situations and particle like behavior in others
Light is said to have a dual wave-particle nature. What does this statement mean?
A quantum is the minimum amount of energy that can be lost or gained by an atom, while a photon is a particle of light that carries a quantum of energy.
Describe the difference between a quantum and a photon.
How many electrons are shown in each element's electron dot structure?
Pauli exclusion principle, Aufbau principle, and Hund's rule
When writing the electron configuration notation for an atom, what three principles or rules should you follow?
The orbital diagram has five boxes with two arrows in the first three and single arrows in the last two.
The orbital diagram has nine boxes with two arrows in the first seven and single arrows in the last two
Write the electron configuration and draw the orbital notation for atoms of oxygen and sulfur.
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p
Write the aufbau sequence of orbitals from 1s to 7p.
a) Be: 1s²2s²
1s: ↑↓, 2s: ↑↓
b) Al: 1s²2s²2p⁶3s²3p¹
1s: ↑↓, 2s: ↑↓, 2p: ↑↓ ↑↓ ↑↓, 3s: ↑↓, 3p: ↑
c) N: 1s²2s²2p³
1s: ↑↓, 2s: ↑↓, 2p:↑ ↑ ↑
d) Na: 1s²2s²2p⁶3s¹
1s: ↑↓, 2s: ↑↓, 2p: ↑↓ ↑↓ ↑↓, 3s: ↑
Write each element's orbital notation and complete electron configuration
a) Kr [Ar] 4s²3d¹⁰4p⁶
b) P [Ne] 3s²3p³
c) Zr [Kr] 5s²4d²
d) Pb [Xe] 6s²4f¹⁴5d¹⁰6p²
Use noble-gas notation to describe the electron configurations of the elements represented by the following symbols
What element is represented by each electron configuration?
b) [Ar] 4s²
c) [Xe] 6s²4f⁴
d) [Kr] 5s² 4d¹⁰5p⁴
e) [Rn] 7s²5f¹³
d) [Ar] 4s²3d⁸4p¹
Which electron configuration notation describes an atom in an excited state?
a) [Ar] 4s²3d¹⁰4p²
b) [Ne] 3s²3p⁵⁵
c) [Kr] 5s²4d¹
d) [Ar] 4s²3d⁸4p¹
Which orbital diagram is correct for an atom in its ground state?
18; 15; 4
An atom of arsenic has how many electron-containing orbitals? How many of the orbitals are completely filled? How many of the orbitals are associated with the atom's n=4 principal energy level?
Which element could have the ground-state electron-dot diagram shown?
[Kr] 5s²4d¹⁰5p² ∙Sn∙
For an atom of tin in the ground state, write the electron configuration using noble-gas notation, and draw its electron-dot structure.
OTHER QUIZLET SETS
TestOut 11 File Management
Abeka 3rd Grade History - 12 & 13 James…
Chapter 22 Adaptive Study Plan
ACCT 210 Chpt.7