protons, neutrons, electrons

The sub-atomic particles:
protons, neutrons, electrons
Элементарные частицы: протоны, нейтроны, электроны

New terms and definitions:

Atomic Structure
Learning Objectives:
Do I know ..
The structure of an atom?
About the relative size of the nucleus?
That atoms of a given element have the same number of protons in the nucleus?
The meaning of the terms ‘atomic number’ and ‘mass number’?

Elements
one of the 100+ pure substances
that make up everything in the universe

Examples of Elements

Working in pairs complete the following:
Draw an atom
It must include all the subatomic particles, their charges and locations.
Try to answer the following questions
The structure of an atom?
About the relative size of the nucleus?
That atoms of a given element have the same number of protons in the nucleus?
The meaning of the terms ‘atomic number’ and ‘mass number’?

Atom
the smallest particle making up elements

Sub-atomic Particles
Protons p+ - positive charge, in nucleus
Electrons - e- negative charge, orbiting nucleus
Neutrons n0 – no charge, in nucleus

http://www.pil-network.com/resources/tools

Drawing an Atom of Carbon

Drawing an Atom of Carbon
minus Atomic # = # of n0
= # of p+ and # of e-
Carbon has 6 p+ and 6 e-
Carbon has 6 n0

Drawing an Atom of Carbon

exercises
Task 1. Determine the number of protons and electrons in the atoms of iron and mercury

exercises
Task 2. An atom of an element has 10 neutrons in the nucleus of an atom and the atomic weight of 19. Determine what is an element?

Complete the handout in pairs

Assessment for learning….
Using the mini white board answer the following questions individually

How many protons does Silicon have?

What makes up the atomic weight of an atom?

How many electrons does a neutral Calcium atom have?

What element has one less proton than Boron?

What is the atomic number and Atomic mass of Argon?

Chemistry
Diga, diga, diga, diga, that’s all folks!