Atoms and Elements Vocab

Atoms and Elements Week 1 (science vocabulary)

1. atom -the smallest unit of an element that still has the properties of that element

2. proton -particle with a positive charge

3. electron -particle with a negative charge

4. neutron -particle with no charge

5. nucleus- the center of an atom (where the proton and neutrons are)

6. mass number- total number of protons and neutrons in an atom

7. atomic number- total number of protons in a nucleus

8. element- substance make of only one kind of atom

9. periodic table- table that shows the elements arranged by their atomic numbers

10.  molecule- two or more atoms bonded together

11. compound- a substance made of 2 or more different elements

12. matter- a substance that occupies space and has mass (all matter is made of atoms)

13.  solid- the state of matter that has a definite shape and volume

14.  liquid- the state of matter that has a definite volume but no definite shape

15. gas- the state of matter that does not have a definite shape or volume

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Monday- write definitions           

Tuesday-crossword

Wednesday- Atoms and Elements worksheet (on the back of the crossword)            

Thursday- study