Atomic Model Definition Flashcards

Question	Answer
Isotope	Atoms of the same element that have different masses due to different number of neutrons in the nucleus
Atomic number	Number of protons in an atom
Mass number	Total number of protons and neutrons in an atom
Relative atomic mass	Mean mass of an atom of an element compared with carbon-12
Element	A substance made up atoms which all have the same number of protons
Nuclear fission	The splitting of an atom to produce atoms of a different element, neutrons and energy
Mendeleev's periodic table was arranged in order of	Atomic weight
Moseley rearranged the periodic table in terms of	Atomic number
Period	A horizontal row of elements
Group	Each column of elements
Newlands organised his octaves in order of	Increasing atomic weight
According to Dobereiner...	... the atomic weight of the middle element is nearly the same as average of the atomic weights of other two elements.
Electronic configuration	The way in which an atom's electrons are arranged

Resource summary

	Created by Niamh Ryan about 7 years ago