6th Unit 2 Vocabulary

5. – can be made into wires
8. – gentle shining light that is reflected from a surface
11. – a pure substance composed of the same type of atom throughout; cannot be broken down into simpler substances
12. – elements whose physical properties are intermediate between metals and nonmetals

1. – the ability of a substance to transfer heat or electrical energy
2. table of elements – an organized table of all the chemical elements in order of increasing atomic number
3. – a physical property of an object allowing it to be reshaped with bending or cracking
4. property -- a feature of matter that can be observed or measured to describe and differentiate between samples of matter
6. – elements that are mostly solids at room temperature, have luster and are good conductors of heat and electricity
7. – elements that are mostly liquids and gases at room temperature and bad conductors of heat and electricity
9. earth metals – 17 metallic elements; located in the middle of the periodic table (atomic numbers 21, 39, and 57–71)
10. – a solid formed due to a chemical reaction of liquids