Flashcards
protons
Flashcards do conjunto (10)
- 1What are atoms?the smallest particle of a chemical element that can exist.
- 2How many atoms are known on earth?118 atoms and 98 found naturally on earth the remaining 20 are artificial
- 3what is a substance made up of one type of atom calledan element
- 4Why is carbon a unique elementIt is the only non metallic element that can form crystal lattices
- 5What are compoundscompounds are substances that are made up of different types of atoms
- 6what smaller particles are atoms made up ofsubatomic particles
- 7why does the negative charge of electrons attract to the positively charged protons in the nucleus?because the opposite electric charges attract each other
- 8what is this force known as?electrostatic attraction
- 9what is the number of protons in a atom known asatomic number
- 10how many times lighter is an electron than a proton?1800 times
Informações
- Descrição
- incomplete
- Criado por
- Latifa Adam · mai 2018
- Atualizado
- 6 mai 2018
- Visualizações
- 6
- Avaliação