How are Cathode rays formed?
Thomson also established the mass-to-charge ratio of electrons by observing their deflections in electric and magnetic fields.
The charge on an electron was established by Millikan in a study of behavior of electrically charged oil droplets in an electric field.
What is mass spectrometry is used to establish? And what is it?
The complete span of possibilities for frequency and wavelength is described as the electromagnetic spectrum, of which visible light is only a very small part.
Explain Periodic Relationships.
Elements with similar electron configurations fall in the same group of teh periodic table. For main-group elements, the group number correspons to the number of electrons in the principal shell of highest quantum number. The period number is the same as the principal quantum number of the valence shell. the division of the periodic talbe into s-, p-, d-, and f-blocks assists in the assignment of probable electron configureations. With in the f-block, the lanthanide series consists of elements in which the 4f subshell is the one being filled; the actinide series consists of elements in which the 5f subshell is being filled.
Define effective nuclear charge.
Define Ionization energy.
What is a Lewis structure show?
What are the strategy for writing Lewis structures?
Explain the difference between monomers and polymers.
Atomic Radius increases as the group decreases and the period increases in the periodic table.