Three different sub-atomic particles are described below: Particle X: Uncharged Particle Y: Carries positive charge Particle Z:
Orbits the nucleus Which statement is true? X is a neutron, Y is an electron, and Z is a proton. X is a neutron, Y is a proton, and Z is an electron. X is a proton, Y is an electron, and Z is a neutron. X is an electron, Y is a proton, and Z is a neutron.
Neutron is a subatomic particle found in the nucleus of an atom except in the nucleus of hydrogen. Since it does not have any charge and it is a neutral atom it is known as neutron. Neutron has a symbol n or . The mass of single atom is ,. Proton is also a subatomic particle found in the nucleus of an atom with the symbol p or . Proton carries positive charge. Electron is the subatomic particle which revolves round the nucleus and it carries negative charge.
Therefore the answer is X is neutron since it is an uncharged particle Y is a proton since it carries positive charge and Z is an electron since it revolves round the nucleus or orbits the nucleus.
The molecule SO3 is of the type AX3. The molecule is symmetrical and non polar.
There are three regions of electron density in the molecule. This corresponds to a trigonal planar geometry. This means that the three oxygen atoms are arranged at the corners of a triangle. The bond angle is 120 degrees.
Darwin had arrived at a complete theory of evolution by 1839, but it was to be another 20 years before he published his ideas of evolution through natural selection in his epochal book On the Origin of Species by Means of Natural Selection.