Examlex
An experiment is carried out to determine the relationship between the average speed (rpm) and power (hp) of a mixer. Draw the scatter plot for the variables.
Atom Contains
Atoms consist of a nucleus made of protons and neutrons, surrounded by electrons in orbital shells.
Atomic Number
The atomic number is equal to the number of protons (positively charged particles) in the nucleus of an atom.
Element
A pure chemical substance consisting of one type of atom distinguished by its atomic number.
Nucleus
The central and most important part of an atom, containing protons and neutrons and almost all of its mass.
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