Atomic Structure and the Periodic Table Flashcards
Where do protons and neutrons live?
In the nucleus of an atom
Where do the electrons live?
In shells around the atom
What is the maximum number of electrons that can go in the first shell?
2
What is the maximum amount of electrons that can go in the second, third, fourth etc. shell?
8
What happens to atoms in chemical reactions?
They will either loose or gain an electron
How many groups of atoms are there?
8
How does an atom become an ion?
When an atom gains/looses an electron in its outer shell, its charge changes from 0 to either +n or -n
Which two groups on the periodic table don’t loose any electrons?
Group 6 and 7
Who produced the first practical periodic table?
Dmitri Mendeleev
How is the modern periodic table layed out?
1) the elements are arranged in order of increasing atomic number
2) horizontal rows are called periods
3) vertical columns are called groups
4) elements in the same group are similar to each other
All of the elements in the periodic table are either:
a) fruit and vegetables
b) metals and non-metals
c) liquids and solids
b) metals and non-metals
In which group would you find alkali metals?
Group 1
In which group would you find halogens?
Group 7
In which group would you find noble gases?
Group 0/8
In what groups would you find transitional metals?
Group 2 and 3
