Which of the following includes an example of a chemical property of an element? a
Aluminum is a solid at room temperature and is a poor thermal insulator.
b
Sulfur is not shiny and is not malleable
c
Sodium is a solid at room temperature and reacts with other elements
d
Silicon is Shiny and is a poor conductor of electricity

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity

explanation:

c is the answer because when something is left after something evaporates that shows the chemical change.

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.