MAKING ATOMS:elctrons:a stable elementary particle present in all atoms, orbiting the nucleus in numbers equal to the atomic number of the element; a lepton with a negative charge of 1.6022x10--19 coulomb, a rest mass of 9.1096x10--31 kilogram, a radius of 2.818x10--15 metre, and a spin of ½

ISOTOPES OF HYDROGEN

a central or fundamental part or thing around which others are grouped; core  
nucleus:  

What did you learn about culture?
 learnt about Arizona ,   the history of the Titanic , Beijing, Seattle.

What do you need to improve?

The Grammar

How you can improve it?

talk less

What did you do in English outside class?
Estudy

- a) In the year 2100  school  wont exit.

-b) In the year 2100  music will make the robots.

-c) In the year 2100  food will be smaller like chocolates bars.

-d) In the year 2100 villamayor will have a shopping center.

-e) In the year 2100  hospitals wont exit.

-f) In the year 2100  football balls will be robots.

-g) In the year 2100  barman will be robots.

-h) In the year 2100  teachers wont exit.

-i) In the year 2100 all houses will have domotic.

-j) In the year 2100  cars will fly.