Janelle is observing a sample of matter. she notes that it is a shiny silver-colored solid, has a
mass of around 20 grams, and conducts heat and electricity well. what type of properties is
janelle observing?
chemical properties
only intensive properties
physical properties
only extensive properties

Janelle is observing Physical properties.

Why?

The properties of matter can be classified as follows:

The properties that Janelle observed are: Color (intensive, physical), mass (extensive, physical), heat conductivity (intensive, physical), and electrical conductivity (intensive, physical). All these properties are Physical properties.

Have a nice day!

thats how its supposed to be

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.