The answer is dipole-dipole and dipole-induced dipole forces.
The dipole-induced dipole is a kind of interaction induced by a polar molecule by disturbing the arrangement of electrons.
- In methyl cyclohexanone molecules, there is a permanent dipole moment due to dipole moment vectors not canceling.
- There is induction of dipole by disturbing the electronic arrangement.
- A permanent dipole moment is created in this interaction.
- Dipole-dipole interactions are defined as the forces that is formed from the close linkage of permanent or induced dipoles.
- These forces are called Van der Waal forces.
- Proteins contain a large number of these interactions, which vary considerably in strength.
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Answer:
Explanation:
Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.
In 1897, J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.
Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment in which he demonstrated that the atom has a tiny and heavy nucleus. Rutherford designed an experiment to use the alpha particles emitted by a radioactive element as probes to the unseen world of atomic structure.
The Bohr model shows the atom as a small, positively charged nucleus surrounded by orbiting electrons. Bohr was the first to discover that electrons travel in separate orbits around the nucleus and that the number of electrons in the outer orbit determines the properties of an element.
No of Neutrons =Mass No-No of protons
- Hence it has atomic no 38
The element is Stroncium(Sr)
Galactic is referring to the galaxy and cosmos! :)
