Electron Configuration - Weebly

Electron Configuration - Weebly

Electron Configuration Chapter 5 Section 3 1. You need this to see! Sodium + Titanium + Rhenium 2. You or me Sulfur + Nitrogen + Phosphorous + Oxygen + Erbium 3. Vacation home Calcium + Indium + Boron 4. Dont gamble on this one! Erbium + Polonium + Potassium

Electron Configuration Electron Configuration the arrangement of electrons in an atom Electrons tend to assume the arrangement that gives them the lowest energy possible, due to the fact that low energy systems are more stable

Three Rules to follow: Aufbau principle; Pauli exclusion principle; and Hunds Rule Aufbau Principle Each electron occupies the lowest energy orbital available

Pauli Exclusion Principle A maximum of two electrons can occupy a single atomic orbital, but only if the electrons have opposite spins Hunds Rule

Single electrons with the same spin must occupy each equal-energy orbital before additional electrons with the opposite spin can occupy the same orbital Which of the following is correct? Which of the following is correct? Using the periodic table as a key

What block/energy level do the following elements belong? Ru 4d O 2p Br

4p Cs 6s Np 5f Ar

3p What is the electron configuration for Be? What is the electron configuration for N? What is the electron configuration for Mg? What is the electron configuration for S?

What is the electron configuration for K? What is the electron configuration for Ni? Homework 10/27/14 Do the electron configuration for elements 1 18 in your notes. Electron Configuration Notation Designates

the principal energy level, the energy sublevel (associated with each orbital), and the number of electrons in the sublevel Sodium: Sodium: _

1s 2s 3s 2p 1s2 2s2 2p6 3s1 Write the Electron configuration notation for the following: Zr

Ce Ni Se Sr HW: Using your homework from last night write the notation for elements 1 18 H

Ne He Na

Li Mg Be

Al B Si

C P N

S O Cl

F Ar Noble Gas Notation Noble gasses are the last column of the periodic table

Full p-shells = Very stable Noble Gas Notation uses bracketed symbols to consolidate notation Notation Noble

for Na: 1s2 2s2 2p6 3s1 Gas Notation for Na: [Ne] 3s1 Noble Gas Notation Use the Noble gas before the element you are looking at Start

electron configuration after that noble gas Example: For Mo, Kr ends in 4p6 so you start with 5s [Kr] 5s2 4d4

What is the noble gas notation for the following: Bi Rb V Si Ru

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