Rutherford performed gold foil experiment to understand that how negative and positive particles could Co exist in an atom. He bombarded alpha particles on a 0.00004 cm thick gold foil.
He proposed a planetary model of the atom and concluded following results and demonstrated that,
1. An atom produces a line spectrum.
2. An Electron revolves around the nucleus without any orbits.
3. Since most of the particles passed through the foil undeflected it means that most of the volume occupied by an atom is empty.
4. An Atom as a whole is neutral.
5. The deflection of few particles on the foil suggested that there is center of positive particles in an atom called the nucleus of the atom.
6. The complete rebounce of few particles on the gold foil suggested that the nucleus is very dense and hard.
•boiling and freezing point
•surface tension
•vapor pressure
• solid state
•liquid state
•gaseous state
3) molecular and structural
Explanation:
Molecular and structural are two terms that represents chemical formula of compounds and molecules.
The molecular formula shows the chemical symbols and the number of atoms combining using subscripts.
The structural formula gives the arrangement of elements in a compound and molecule using a diagrammatic approach.
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Molecular formula brainly.com/question/6125309
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Answer:
Hey, I will try my best
so as you know volcanos can be very destructive and cause mass death and deforestation. but nature needs volcanos because they are part of a cycle. The lava that comes from volcanos can feed various plants which will start to grow after an eruption. these plants will process the lava rock into food which feeds other plants. and soon enough you have a whole forest after all the lava rock has been processed.
spiky bob your answerer
