power-upday 1
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POWER-UPday 1. What makes metal different than other materials (like wood, ceramics, cloth, etc). List as many ways as possible. PRE-MAGNETISM & ELECTRICITY. A brief overview of atoms And sub-atomic particles. Atom Definition. - PowerPoint PPT PresentationTRANSCRIPT
POWER-UP day 1
What makes metal different than other materials (like wood, ceramics, cloth, etc).
List as many ways as possible.
A brief overview of atoms
And sub-atomic particles
PRE-MAGNETISM &
ELECTRICITY
Atom DefinitionAtoms are the
basic unit of matter, which consist of a dense inner nucleus and an outer cloud of electrons.
The sub-atomic particlesThere are 3 sub-
atomic particles
- Protons- Neutrons - Electrons
Protons- Positively charged
- found in the nucleus- Relatively large mass
- Stationary within a solid object
Electrons Negatively charged Found orbiting
outside the nucleus Virtually no mass Have incredibly
high velocities around the nucleus, always moving around
Neutrons-ignore for our class this year
- Not charged- in nucleus
-relatively large mass- stationary
Connecting atomsto make objects
There are three types of bonds between atoms
- Ionic- covalent- metallic
Ionic bonds
We can ignore these for our class.Pay attention to them in chemistry.
Covalent bonds
We can ignore these for our class.Pay attention to them in chemistry.
Metallic Bonds• Its described as a “sea of
electrons” around the protons.• The electrons freely pass between
protons evenly dispersing themselves in the object
• This only happens in metals.
Polarized
When all of the electrons in a metal object have been shifted to one
side.
ACTIVITY!!!!
Exit Ticket Day 1
Please draw a picture of how the electrons move around the protons in a solid metal object
Now draw a picture of how the electrons are dispersed in a polarized metal object.