The Early and Modern Periodic Table

Newland found each element had similar properties to the one 8 places along, what is the law?

In the modern periodic table, what do elements in the same group all have in common?

What is the atomic number of an element?

What discovery lead to a change in the order of the elements in the periodic table?

What are the columns on the table called?

As well as the same number of electrons in outer shell, elements in the same group also have...

What are the group 1 metals usually called?

What are the rows on the table called?

What was the key difference between Mendeleev's periodic table and Newlands'?

How did Newlands attempt to classify the elements?

How are the atoms in the modern periodic table arranged?

Which of the following is a halogen?

Which group of elements were not included at all in Mendeleeve's table?