Flashcards
atoms
Cards in this deck (17)
- 1ratio of mass of hydrogen: oxygen in water1: 8
- 2ratio of mass of carbon: oxygen in carbon dioxide3 : 8
- 3the 2 laws1. law of conservation of mass
2. law of constant proportions - 4law of conservation of mass1. Mass can neither be destroyed nor can it be created.
2. The mass of the product is equal to the mass of the reactants in a chemical reaction. - 5law of constant proportionsIn a chemical reaction, the elements always combined in definite ratios by mass
- 6daltons atomic theory1.matter made of atoms
2.invisible, can't create/destroy
3.an element- same mass n chemical prop.
4.diff. element-diff masses n chemical prop
5. ratio - small whole nos.
6.relative comp...... constant - 7copper: oxygen4:1
- 8atoms not capable for independent existence1. oxygen
2.hydrogen
3.nitrogen
etc. - 9Atoms capable of independent existence.1.Helium
2.neon
etc. - 10smallest atom and its sizehydrogen
radius = 01.nm - 111m to nm10^9 or 1000000000nm
- 12measuring unit of atomsnm/ nanometer
- 13atom1. Smallest particle of an element which may or may not have an independent existence but take part in chemical reactions.
2. - 14radii(size) of hydrogen atom10^-10 meter
- 15Radii of molecule of water.10^-9 meter
- 16Radii of molecule of haemoglobin.10^-8 meter
- 17—
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- Description
- IX Chemistry (Atoms and molecules) Flashcards on atoms, created by Candy A on 12/10/2022.
- Created by
- Candy A · Oct 2022
- Updated
- Dec 29, 2022
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