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Atomic Structure

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Total cards: 14•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (14)

#1
Front (Question)

What were the five points to Dalton’s model of the atom?

Back (Answer)

all matter composed of tiny indivisible particles called atoms atoms cannot be created or destroyed atoms of the same element are alike in every way atoms of different elements are different atoms can combine together in small numbers to form molecules

#2
Front (Question)

compound

Back (Answer)

substance made by chemically combining two or more elements

#3
Front (Question)

Describe the actual model of the atom

Back (Answer)

made up of sub-atomic particles nucleus contains protons and neutrons electrons occupy space outside nucleus

#4
Front (Question)

Why is atomic number important?

Back (Answer)

defining property of element

#5
Front (Question)

mass number

Back (Answer)

number of protons and neutrons

#6
Front (Question)

atomic number

Back (Answer)

number of protons

#7
Front (Question)

isotope

Back (Answer)

atoms of same element with different numbers of neutrons

#8
Front (Question)

ion

Back (Answer)

atom which has gained or lost electrons

#9
Front (Question)

How do isotopes differ from original atom?

Back (Answer)

heavier isotopes diffuse more slowly

#10
Front (Question)

empirical formula

Back (Answer)

simplest whole-number ratio of elements in compound

#11
Front (Question)

hydrated salt

Back (Answer)

compounds that contain fixed ratio of water molecules

#12
Front (Question)

water of crystallization

Back (Answer)

water within crystalline structure of compound

#13
Front (Question)

molecular formula

Back (Answer)

shows all atoms present in a molecule

#14
Front (Question)

How do you calculate molecular formula?

Back (Answer)

X(mass of empirical formula) = molar mass