Flashcards
Atoms
Flashcards do conjunto (4)
- 1An atom is the smallest part of an element. An element only has one type of atom. An atom of one element is different to another elementAtoms contain neutrons, protons and electrons
- 2—Electrons orbit the nucleus
Nucleus contains portons and neutrons - 3An electron has a negative charge and its mass is 1/2000 A proton has a positive charge and has a mass of 1 a neutron has no charge but also has a mass of 1Mass number is the no. of protons and neutrons in the nucleus
The atomic number is the no.of protons which=no.of e - 4Isotopes are atoms of the same element but with a different no. of neutronsHeavier isotopes have a slightly higher mp and bp.
Carbon 14 is radioactive and used for carbon dating
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- Cambridge IGCSE Chemistry (atoms, elements, compounds and mixtures) FlashCards sobre Atoms, criado por Konrad O'Neill em 12-07-2013.
- Criado por
- Konrad O'Neill
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