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The current model of the atom has changed quite a bit from the idea of an atom as a ball of positive charge. The original model was supported by the
discovery of a positively charged particle, the (eg
), by (e. g
When (e. g
discovered a negatively
charge particles using (eg.
He called this negatively charged particle an (e. g.
This discovery led to the development of the (eg.
) or chocolate chip cookie model. This model to became obsolete as a third, neutral subatomic
particle was discovered by (eg.
This neutral particle was called the (eg.
These subatomic particles with Rutherford's (e. g.
1
ushered in the change to the (eg
1 2
3 4 5 6 7 8 9 10
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Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas. in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution