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central atoms that are positively charged, either contain more protons than neutrons, or are simply made up of protons, therefore are not complete atoms. any imbalance of protons to electrons will make it no longer an atom but an ion. this is the only way it could be seen as positively charged because atoms are neutral.
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Who is the scientist who suggested that atoms contain a hard core containing most of the mass of an atom?
The scientist that suggested and proved that atoms contained a nucleus in which most of the weight of the atom was contained (in a very small volume) was Ernest Rutherford, in 1909. This was shown in the 'gold foil' experiment. This was made by shooting positively charged alpha particles, or a positively charged helium atom (2 protons, 2 nuetrons). these then when shot at the gold foil. some of the alpha particles just passed through the gold foil, but some were deflected. this proving that some hit the nucleus while others did not.
A model of a helium atom is shown below. Select all of the protons in the picture.?
In a helium atom, there are two protons located in the nucleus. To identify them in the model, look for two positively charged particles, typically represented as small circles or dots within the central part of the atom. Select both of these particles to indicate the protons in the helium atom.
What type of atoms are shown in a skeletal model of an organic molecule?
These are atoms of carbon.
What type of bond holds sodium and cholride atoms together when sodium atoms interact with chlorine atoms?
When sodium atoms and chlorine atoms interact, the sodium atoms are converted to positively charged cations and the chlorine atoms are converted to negatively charged anions. The cations and anions to which the atoms have been converted are held together by mutual electrostatic charge attractions.
A cathode ray is deflected away from a negatively charged object What property of the cathode ray is shown by these phenomena?
The property of the cathode ray that is shown in this scenario is that it possesses a negative charge. The deflection away from the negatively charged object is consistent with the repulsion between like charges in an electric field.
In Rutherfords gold foil experiment shown in Figure 4-1 alpha particles that bounce straight back from the foil have struck in the gold atoms?
No, they struck the nucleus of the atom. Since the alpha particles are positively charged and nucleus is positively charged as well, they repelled each other and alpha particles are repelled back
How was it shown that atomic nuclei are positively charged?
when Rutherford did his experiment he got a observation that very few alpha particles (helium ions ) got deflected from their mean position . This indicates that there is very tiny positively charged particle or object is present . This led to the result that Nucleus is positively charged .
What were the limitations of J.J Thomson atomic model?
J.J. Thomson's atomic model, known as the "plum pudding model," proposed that atoms consist of a positively charged "soup" with negatively charged electrons embedded within. However, it was limited in several ways: it could not explain the results of the Rutherford gold foil experiment, which demonstrated that atoms have a dense, positively charged nucleus. Additionally, Thomson's model failed to account for the discrete energy levels of electrons, as later shown by Bohr's model, and did not adequately explain atomic stability or the behavior of atoms in chemical reactions.
What is K plus?
K is the chemical symbol used to represent potassium. It is usually shown as K+ to indicate that it is positively charged.
Who is the scientist who suggested that atoms contain a hard core containing most of the mass of an atom?
The scientist that suggested and proved that atoms contained a nucleus in which most of the weight of the atom was contained (in a very small volume) was Ernest Rutherford, in 1909. This was shown in the 'gold foil' experiment. This was made by shooting positively charged alpha particles, or a positively charged helium atom (2 protons, 2 nuetrons). these then when shot at the gold foil. some of the alpha particles just passed through the gold foil, but some were deflected. this proving that some hit the nucleus while others did not.
A model of a helium atom is shown below. Select all of the protons in the picture.?
In a helium atom, there are two protons located in the nucleus. To identify them in the model, look for two positively charged particles, typically represented as small circles or dots within the central part of the atom. Select both of these particles to indicate the protons in the helium atom.
If a charged sphere is brought close to a rod as shown in the figure above the pairs of pith balls suspended at the ends of the rod will?
When a charged sphere is brought close to the rod, it will induce a separation of charges in the pith balls at the ends of the rod. If the sphere is positively charged, the pith ball closest to the sphere will become negatively charged, while the one farther away will become positively charged. This results in an attractive force between the sphere and the nearest pith ball, while the two pith balls may also repel each other due to their like charges. Consequently, the pith balls will move towards the charged sphere.
What has rubbing done to the charges on the objects shown in diagrams A and B?
Rubbing has transferred some charge between the objects in diagrams A and B. In diagram A, the initially neutral object loses electrons, becoming positively charged, while in diagram B, the initially neutral object gains electrons, becoming negatively charged.
What type of atoms are shown in a skeletal model of an organic molecule?
These are atoms of carbon.
What occurs when there is a transfer of electrons?
The transfer of electrons is the movement of electrons from one atom to another atom. The atom that loses electrons becomes a positively charged ion, and the atom that gains electrons becomes a negatively charged ion. An electrostatic bond occurs between the oppositely charged ions, and this is called an ionic bond.
What types of atoms are shown in a skeletal model of an organic molecule?
These are atoms of carbon.
What type of bond holds sodium and cholride atoms together when sodium atoms interact with chlorine atoms?
When sodium atoms and chlorine atoms interact, the sodium atoms are converted to positively charged cations and the chlorine atoms are converted to negatively charged anions. The cations and anions to which the atoms have been converted are held together by mutual electrostatic charge attractions.
