How does the Law of Conservation of matter apply to physical changes of matter?
The Law of Conservation of matter applies to physical changes of matter. Because the Law of Conservation of matter state that matter can not be created or destroyed. This mean even if we can not see matter, it doesn't mean that it is destroyed. This just means that the matter has just gone through the change of matter state. Moreover, this will apply to the physical changes since even if the matter is gone. This mean we can't see it, but the matter is still there. The matter is just like the physical changes, the matter have just change it form, but it is still the same matter as before.
What is meant by "the particulate nature of matter"?
The particulate nature of matter means that all matter is particulate in nature. This just means that between the separate bits of matter, there is small space that doesn't have any matter. That small space without matter is between the atoms. In science, this is called "atomic nature of matter".
What is the history behind the current atomic model?
There is a very long history behind the current atomic model. Here like a timeline of the history of the current atomic model.
430 - 500 B.C: Democritus a Greek philosopher comes up an idea of atoms. Instead of calling atom, he called it atomos (Greek word for "uncuttable"). He believes that atomos are indivisible and indestructable. Democritus have not done any experiments to prove what he believe, he explain it by using his reasons. During this time period, Aristotle also a Greek philosopher. He did not think that mater is making out of atoms. Instead he said that matter is making up five elements: Earth, water, air, fire, and aether.
1600's - 1800's: John Dalton is an English school teacher. Based on his observation and experiment, he said five main thing: all matter is composed of atoms, atoms cannot be created or destroyed, all atoms of the same element are identical, chemical reactions occur when atoms are rearranged, and compounds are formed by the combination of two or more different kinds of atoms.
1897: Joseph John Thomson, an English scientist who discovered that atoms can be divided. Also electron is negative charge. Smaller particles inside atoms are called subatomic.
1911: Ernest Rutherford, an English scientist who also work with Joseph John Thomson. He discovered positively charge protons are in the nucleus. There is mostly empty space in the atoms. Lastly, he found out that negatively charged electrons are moving randomly in the empty space.
1913: Niels Bohr, a Danish physicist who discovered that electrons have specific energy as they move along certain orbital/energy levels around the nucleus.
1932: James Chadwick, an English physicist who discovered neutron. Neutron is neutral that is no charge. Also he found out that neutron has the same amount of mass as the proton. Lastly, neutron is also found in the nucleus.
The Law of Conservation of matter applies to physical changes of matter. Because the Law of Conservation of matter state that matter can not be created or destroyed. This mean even if we can not see matter, it doesn't mean that it is destroyed. This just means that the matter has just gone through the change of matter state. Moreover, this will apply to the physical changes since even if the matter is gone. This mean we can't see it, but the matter is still there. The matter is just like the physical changes, the matter have just change it form, but it is still the same matter as before.
What is meant by "the particulate nature of matter"?
The particulate nature of matter means that all matter is particulate in nature. This just means that between the separate bits of matter, there is small space that doesn't have any matter. That small space without matter is between the atoms. In science, this is called "atomic nature of matter".
What is the history behind the current atomic model?
There is a very long history behind the current atomic model. Here like a timeline of the history of the current atomic model.
430 - 500 B.C: Democritus a Greek philosopher comes up an idea of atoms. Instead of calling atom, he called it atomos (Greek word for "uncuttable"). He believes that atomos are indivisible and indestructable. Democritus have not done any experiments to prove what he believe, he explain it by using his reasons. During this time period, Aristotle also a Greek philosopher. He did not think that mater is making out of atoms. Instead he said that matter is making up five elements: Earth, water, air, fire, and aether.
1600's - 1800's: John Dalton is an English school teacher. Based on his observation and experiment, he said five main thing: all matter is composed of atoms, atoms cannot be created or destroyed, all atoms of the same element are identical, chemical reactions occur when atoms are rearranged, and compounds are formed by the combination of two or more different kinds of atoms.
1897: Joseph John Thomson, an English scientist who discovered that atoms can be divided. Also electron is negative charge. Smaller particles inside atoms are called subatomic.
1911: Ernest Rutherford, an English scientist who also work with Joseph John Thomson. He discovered positively charge protons are in the nucleus. There is mostly empty space in the atoms. Lastly, he found out that negatively charged electrons are moving randomly in the empty space.
1913: Niels Bohr, a Danish physicist who discovered that electrons have specific energy as they move along certain orbital/energy levels around the nucleus.
1932: James Chadwick, an English physicist who discovered neutron. Neutron is neutral that is no charge. Also he found out that neutron has the same amount of mass as the proton. Lastly, neutron is also found in the nucleus.
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