Electronic structure and the periodic table

Slides:



Advertisements
Similar presentations
Bohr Model Notes.
Advertisements

Which element am I?.
Calderglen High School
Electron cloud Nucleus consisting of protons and neutrons.
Elements – different types of atom Elements are the simplest substances. There are about 100 different elements. Each element is made up of very tiny particles.
Atom Practical Review. Name the subatomic particles? Protons, Neutron, and Electrons.
Atoms and Ions. Discovery of atomic structure Atoms – the building blocks All substances are made from very tiny particles called atoms. John Dalton.
Atomic Structure Introducing atoms. Atoms – the building blocks All substances are made from very tiny particles called atoms. John Dalton had ideas about.
HELIUM ATOM + N N proton electron neutron Shell.
Atoms and Elements. Subatomic Particles Atom- Smallest particle of an element. Subatomic Particles- Atoms are composed of protons, neutrons, and electrons.
THE PERIODIC TABLE & IONS
Structure of the atom. What makes up the atom? Nucleus –Protons (positively charged) –Neutrons (no overall charge) Orbitals –Electrons (negatively charged)
Visit for more Learning Resources
Li Ne K O Atomic structure Mass number
Part A: Atomic Structure
ATOMIC STRUCTURE.
Electronic Structure Noadswood Science, 2016.
All Need to Know About Atoms
Plenary  Test your knowledge of electronic structure
Aim: What is the internal structure of an atom?
Atomic Structure.
ATOMS NOTES Adapted from
Atomic Structure Chemistry.
Bohr’s Model of Electron Arrangement
The Atom.
A substance that is made of only one sort of atom is called an element
What’s the Matter? Atomic Basics
All substances are made from atoms.
All substances are made from atoms.
Yayyyyyyyy Atoms! Atoms and their Parts.
The Chemistry of Life.
Bohr-Rutherford Diagram
A substance that is made of only one sort of atom is called an element
Structure of the Atom Atom -- smallest particle of an element that has all the properties of that element. 3 main subatomic particles: 1. protons 2.
Atoms, Orbitals & Functional Groups
The Atom Chapter 25.
ATOMS NOTES Adapted from
Atomic Structure / Periodic Table
The Structure of an Atom
Atomic Structure Notes
Subatomic Particles Neutron Proton Electron
Atomic Structure Electron Configuration, Valence Electrons, and Ions
Aim: What is the internal structure of an atom?
The Atom… what do you know so far….
Chapter Warm - Up 1. Describe the different parts of an atom.
Atomic Structure / Periodic Table
Chapter Two In Dragonfly Book
Please take your own notes.

All substances are made from atoms.
Section 2.1: The Nature of Matter Adapted from Teacher: Mrs. Rolle
Bohr Models A drawing of an atom that shows the protons and neutrons in the nucleus and the electrons in the correct orbitals.
Atomic Structure An atom is the smallest unit of matter
ELECTRONS Negatively charged particle surrounding the nucleus
Kaupapa: 04 / 05 Thursday Define “element”
ATOMS.
Electron Configuration Number of Protons = Number of Electrons
Presentation transcript:

Electronic structure and the periodic table

Properties of the nucleus and electrons

How are electrons arranged? Electrons are not evenly spread but exist in layers called shells. The arrangement of electrons in these shells is often called the electron configuration. 1st shell 2nd shell 3rd shell

How many electrons per shell? Each shell has a maximum number of electrons that it can hold. Electrons will fill the shells nearest the nucleus first. 1st shell holds a maximum of 2 electrons 2nd shell holds a maximum of 8 electrons 3rd shell holds a maximum of 8 electrons

Calculating electron configurations

Summary: the atom so far The nucleus is: Dense – it contains nearly all the mass of the atom in a tiny space. Made up of protons and neutrons. Positively charged because of the protons. Electrons are: Thinly spread around the outside of the atom. Very small and light. Negatively charged. Found orbiting the nucleus in layers called shells. Able to be lost or gained in chemical reactions.

Which element am I?

I am made up of 7 electrons.

Answer: Nitrogen

I am made up of 12 electrons

Answer: Magnesium

I have 2 electrons in my first shell and 3 electrons in my second shell.

Answer: I am Boron

I have 2 electrons in my first shell, 8 in my second shell and 7 in my third shell.

Answer: I am Chlorine

I have two shells. In my second shell I have 6 electrons.

I am oxygen

I have 3 shells. In my outer shell I have 3 electrons.

Answer: I am Aluminium

Electron shells Electrons are arranged in shells around an atom’s nucleus. Each shell has a maximum number of electrons that it can hold. Electrons will fill the shells nearest the nucleus first. 2nd shell holds a maximum of 8 electrons 1st shell holds a maximum of 2 electrons 3rd shell holds a maximum of 8 electrons This electron arrangement is written as 2,8,8

What’s the electron arrangement?