In a periodic table rows are called ________ and columns are called ________.
Correct Answer:
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Q64: Write the electron arrangement for the atom
Q243: The charge to mass ratio of an
Q244: The chemical formula for calcium telluride is
A)Ca(TeO3).
B)Ca(TeO2).
C)CaTe.
D)CaTe2.
Q245: In the following drawings,shaded spheres represent cations
Q246: 81 g of HBr react with 40
Q249: In the following drawings,shaded spheres represent cations
Q250: Atoms of the same element always have
Q251: What are the names of the ions
Q252: The element that is in period 5
Q253: In the following drawings,shaded spheres represent cations
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