Question

`which of the following is true ?



a) we can sometimes know the exact location and speed of an electron at the same time.

b) All orbitals in a given atom are roughly the same size.

c) since electrons have mass, we must always consider them to have particle properties and never wavelike properties.

d) Atoms are roughly spherical because when all of the different shaped orbitals are overlapped, they take on a spherical shape.

e) All of the above are true.

Answer 1

Answer:

C) since electrons have mass, we must always consider them to have particle properties and never wavelike properties.

Answer 2

The true statement is - d) Atoms are roughly spherical because when all of the different shaped orbitals are overlapped, they take on a spherical shape.

Facts about the atom, sub-atomic particles, and their shapes are explained here:

• According to the Heisenberg Uncertainty Theory, the exact position or location and the velocity of an electron cannot both be measured at the same time therefore option A is false.  
• We know that with moving further away from the nucleus of any atoms the size of the orbitals increases, therefore, option B is false  
• The mass of electrons are very small that they did not make them as particle only but also behave like a wave and have wave-like properties.
• Atoms have various shapes spherical, impious, dumell-shaped, however, when they overlap, they make a spherical shape, therefore option c is true.

Thus, The true statement is - option d)

Learn more about orbitals:

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