CH 4 - WS on Intro, organizing the elements, metals and nonmetals

Middle School
Physical Science
CH 4 - WS on Intro, organizing the elements, metals and nonmetals


 1. Define:

• electron - the smallest particle of an atom, it has a negative charge
• proton - the positively charged particle in the nucleus of the atom, accounts for 1/2 the weight of most atoms.
• neutron - the un-charged particle in the nucleus of the atom, accounts for 1/2 the weight of most atoms
• nucleus - the central part of the atom composed of all the atoms neutrons and protons
• ion - An atom which is now charged positively or negatively because the # of electrons is out of balance with the # of protons
• isotope - An atom which has a different number of neutrons than it should according to its atomic number

2. Draw and label the box on the periodic table for the element Lithium.  (include: atomic mass, atomic number, electrons in each energy level, atomic symbol)

• atomic mass is 6.941
• atomic number is 3
• electrons in each shell are 2 and 1
• atomic symbol is  Li

3.  Draw a picture of Lithium

4. Draw a picture of a (+1) ion of Lithium.   same as above but subtract one electron

5. On the periodic table, the horizontal rows are called __periods___.
6. The vertical columns are called ____groups_____.
7. The most highly reactive group is the ____Alkali Metals_______.
8. The group of elements that NEVER bond are called ____Noble Gases_____.
9. Which group would be soft like butter if found alone?  Alkali Metals
10. Which group is usually a gas?  non-metals  like Oxygen and Nitrogen
11. What can you use to make a synthetic element? a particle accelerator

12. Which group glows when electricity is run through it?  Noble Gases
13. If I start with the element Nickle and add an electron... what to I get? An ion of Nickle

14. If I start with the element Nickle and I subtract a neutron...  what do I get? An isotope of Nickle

15. What happens to Nickle if I add a PROTON??  Nickle changes to Copper and since I didn't add a neutron o an electron... it  is both an ion and an isotope.




Label the periodic table with these words:  Alkaline Earth Metals, Transition Metals, Alkali Metals, Noble Gases, Non-metals, &  Synthetic Elements.  Use a different color for each section.


Synthetic elements have white lettering... (There is a slight difference in the transition metals.  Do not worry about which PT you follow, both will be correct)