1 The periodic table Flashcards
What are the vertical columns in the periodic table called?
Groups.
How are the groups numbered.
1 - 7 and the final group is called group 0.
What is group 1?
The alkali metals.
What is group 7?
The halogens.
What is group 0?
The noble gases.
What are the horizontal rows in the periodic table called?
Periods
What can you use the periodic table to work out?
The number of protons, neutrons and electrons there are in atoms.
How do you find the number of protons?
It is equal to the atomic number.
How do you find the number of electrons?
It is equal to the number of protons.
How do you find the number of neutrons?
Mass number - atomic number.
How are the electrons arranged in the outer shells of atoms?
2,8,8,2.
What does electronic configuration mean?
It is the arrangement of electrons in an atom.
Which value do you use when drawing electronic configurations?
The atomic number.
Why do we use the atomic number?
As it tells you the number of protons, the number of protons is equal to the number of electrons. And electrons are the ones that encircle the atom.
What do characteristics do elements in the same group share?
Elements in the same group in the periodic table have the same number of electrons in their outer shell.