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True or false The Bohr model of the atom could be correctly applied to only one atom the helium atom?
Niels Bohr in fact based his model on the hydrogen atom. However, I wouldn't say that the Bohr Model can be correctly applied to ANY atom. Whilst it is an excellent approximation it is not truly accurate. Please don't forget that the Bohr Model is just that, a model, and a model is never as accurate as the real thing.
Is it true that hydrogen bond is a weak chemical attraction between polar molecules?
Yes, it is true. A hydrogen bond is a weak attraction between a hydrogen atom in a polar molecule and an electronegative atom in another polar molecule. The strength of a hydrogen bond is weaker than covalent or ionic bonds.
The currently accepted model of the atom includes an electron cloud.?
True
What was the discovery about the nucleus from Rutherford?
It is true that an atom has a nucleus. As for which model of the atom is thought to be true, at the present time we use a model based upon quantum mechanics which differs significantly from the early Rutherford or Bohr atomic models.
What happens when the hydrogen atom of one water molecule and the oxygen atom of another molcule come together a?
When the hydrogen atom of one water molecule comes together with the oxygen atom of another water molecule, a hydrogen bond forms between them. This interaction is not a true chemical bond but rather a weak attraction that plays a crucial role in the properties of water, such as its high surface tension and boiling point. These hydrogen bonds are essential for the structure of ice and the behavior of water in biological systems.
Bohr preformed his experiments with the hydrogen atom?
Yes, its true. Therefore every theory developed by Bohr is based on Hydrogen atom.
True or false The Bohr model of the atom could be correctly applied to only one atom the helium atom?
Niels Bohr in fact based his model on the hydrogen atom. However, I wouldn't say that the Bohr Model can be correctly applied to ANY atom. Whilst it is an excellent approximation it is not truly accurate. Please don't forget that the Bohr Model is just that, a model, and a model is never as accurate as the real thing.
True or false since the 1930s the model of the atom has changed a great deal?
True. The model of the atom has evolved significantly since the 1930s, moving from the Bohr model to the quantum mechanical model. The discovery of subatomic particles, such as protons, neutrons, and electrons, led to a more complex understanding of the atom's structure.
Is it true that hydrogen bond is a weak chemical attraction between polar molecules?
Yes, it is true. A hydrogen bond is a weak attraction between a hydrogen atom in a polar molecule and an electronegative atom in another polar molecule. The strength of a hydrogen bond is weaker than covalent or ionic bonds.
Is it True or False that water consists of an atom of oxygen that has formed a covalent bond with two atoms of hydrogen?
True. Water consists of one oxygen atom that has formed covalent bonds with two hydrogen atoms, resulting in the chemical formula H2O.
Hydrogen bonding is a weak attractive force?
Hydrogen bonding is a type of intermolecular force that occurs when a hydrogen atom is covalently bonded to a highly electronegative atom like oxygen, nitrogen, or fluorine. This results in a partial positive charge on the hydrogen atom, which can then be attracted to the partial negative charge on the electronegative atom of a neighboring molecule. Hydrogen bonding is stronger than other types of dipole-dipole interactions but weaker than covalent or ionic bonds.
The currently accepted model of the atom includes an electron cloud.?
True
Is it true that amphipathic molecules are molecules that do not contain any hydrogen atom?
No, that is not true. They are molecules that have both hydrophobic and hydrophilic parts.
Is a hydrogen bond a true bond?
If you are asking about the hydrogen bonds between molecules then no, they are not actual bonds but are instead a force of attraction.See: Why_is_hydrogen_bonding_not_a_true_bond
What was the discovery about the nucleus from Rutherford?
It is true that an atom has a nucleus. As for which model of the atom is thought to be true, at the present time we use a model based upon quantum mechanics which differs significantly from the early Rutherford or Bohr atomic models.
Write the letter of each sentence that is true about hydrogen bonds?
A) Hydrogen bonds are weaker than covalent bonds. B) Hydrogen bonds form between a hydrogen atom and a highly electronegative atom. C) Hydrogen bonds are important in maintaining the structure of proteins and DNA. D) Hydrogen bonds are only found in water molecules. Correct sentences: A) Hydrogen bonds are weaker than covalent bonds. B) Hydrogen bonds form between a hydrogen atom and a highly electronegative atom. C) Hydrogen bonds are important in maintaining the structure of proteins and DNA.
How is a hydrogen bond created?
A hydrogen bond is the electromagnetic attractive interaction of a hydrogen atom and an electronegative atom, such as nitrogen, oxygen or fluorine, that comes from another molecule or chemical group. It is not a true chemical bond. The hydrogen atom has an attraction to another electronegative atom. These attractions can occur between molecules (intermolecularly), or within different parts of a single molecule (intramolecularly)
