Genernal Knowledge On Every Topic Flashcards
What is name of the centre of the atom
The centre of an atom is a nueclus
Which particle has a positive charge
Proton
Which particle has the smallest mass
Electron
What the electronic structure of neon
2,8 (from the atomic number) ( their can only be 8 electrons in an atoms outer shell)
To find a percentage
Divided the smaller number by the lager number then times it by 100
What type of electromagnetic radiation is emitted by turned on neon sign
Visible light
What are two health risks to UV radiation
Sun burn (skin burnt) and long exposure to UV can cause skin cancer
What is the plum pudding model made up of
A positively charged dough with negativity charged electrons within the dough
What is a nuclear model made up of
A centre nucleus with orbiting electrons around it
Why is the total positive charge in every atom in an element always the same
As each atom in the element has the same number of protons which have a positive charge