Search the web or your textbooks for an illustration of Mendeleev’s periodic table. How many elements are there in his periodic table? How does it compare with the modern periodic table?
Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
Search the web or your textbooks for an illustration of Mendeleev’s periodic table.
How many elements are there in his periodic table? How does it compare with the
modern periodic table?
2. Some elements in the periodic table are called “ancient.” What are these elements and
why are they called “ancient”?
3. There are less than five liquid elements. What are they?
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