Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Science

No description
by

Jeslyn Tan

on 25 June 2016

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Science

Group I: Alkali Metals
Group VII: Halogens
Group 0: Nobel Gases
It is a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure appear in vertical columns.
Overview:
You will be learning about...
Groups:
Group I
(Alkali Metals)

The Periodic Table:
Periodic Table

By: Ain, Jeslyn, Manting, Tania, syazana
What is the periodic table?
The arrangement
The change of a metallic to non-metallic element
Elements in Group I, VII, 0
Chemical Displacements
Consists OF:
Lithium (Li)
Sodium (Na)
Potasium (K)
Rubidium (Rb)
Caesium (Cs)
Francium (Fr)
GROUP 1
Alkali metals react with water to produce Akaline solution
These metals all have 1 electron in their valence shell
Thus they can lose this electron to form an ion with a + charge

Why is that so?
As the atom gets bigger, they find it increasingly easy to lose the electron as it is along while away from the nucleus
The electron on the other shell interfere and stop the nucleus holding on to the electron
(this process is known as Shielding)
The no. of shells that these metals have are all related to the row they are on the periodic table
2 Shells

3 Shells

4 Shells

5 Shells

6 Shells

7 Shells
The number of the shells of each metal = to their no. of their period


For example

Softness,Reactivity & Density Increases
MElting point + Boiling point decreases
the physical and chemical properties of group 1
1. -They have low melting and boiling points
compared to other metals.
- the melting point decreases as it goes down the group, same goes for the
boiling point
2. - These alkali metals have low densities
compared to other metals
- they tend to feel lighter
- the densities will increase when you
go down the group.
GROUP 1
group 1

3. -They are soft.
- Lithium is the hardest alkali metal .
- As you go down the group, the metals
will get softer

4. they react quickly with water, producing hydroxides and hydrogen gas.

5. their hydroxides and oxides dissolve in water to form alkaline solutions


physical and
chemical properties of GROUP 7
- halogens also have low melting
and boiling points
- but both melting and boiling point increase as you go down the group
GROUP 7

-they tend to change in state
from gas to liquid to solid down the
group. for example, fluorine and chlorine
are gases while bromine is a liquid at room
temperature.

-the colour will also be darker as you go
down the group

- poor conductors of heat and electricity
properties of
GROUP 0

- the melting and boiling points
increases as you go down the group

- they are unreactive

- they are colorless

- low densities. the density increase
as you go down the group
The explanation of non- reactivity of NOBLE GASES.
Group 0
All noble gases have complete valence shell.
For example,
Helium
THIS GIVES THE ELEMENTS THE MOST STABLE CONFIGURATION THEY CAN ACHIEVE.
Group 0
FOR EXAMPLE,
NEON
2.8
argon
2.8.8
KRYPTON
2.8.8.18
NOBLE GASES CAN BE FOUND IN THEIR FREE FORMS IN NATURE.
for example,
helium in balloons

liquid neon in lights.
as such,
Or
For example:
_
_
GROUP 7 (halogens)
CONSIST OF:
Fluorine

Chlorine

bromine

IODINE

asTATINE

WHAt are HAlogens?
They are toxic non-metals that all have 7 electrons in their valence shell
thus they gain 1 electron to have a stable configration
_
Halogens can react to some metals to form
metal halides
(e.g. sodium chloride)
Halogens also can react with Hydrogen to form
Hydrogen halides
(e.g. Hydrogen chloride)

THANK YOU!
We have come to the end of our presentation
Credits:
AIn-Group 1
Jeslyn-Overwiew/editing/creating
Syazana-Group 0
Manting-Group 7
tania-properties
We hope you liked it!
Stick around for the awesome music though! and replay this as many times as you want :)
Full transcript