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Card 6
Front
What is the total number of protons and neutrons in an atom called?
Back
Card 7
Front
What must the number of protons in an atom always be the same as?
Back
Card 8
Front
What must atoms of the same element all have?
Back
Card 9
Front
What are atoms of the same element with different numbers of neutrons called?
Back
Card 10
Front
What are the number of neutrons in an atom equal to?
Back
Card 11
Front
How can the mass number and atomic number of an atom be shown?
Back
Card 12
Front
Why do we count only protons and neutrons to calculate the mass number of an atom?
Back
Card 13
Front
How many protons, electrons and neutrons are there in an atom of 19 above 9 before F?
Back
Card 14
Front
What are isotopes?
Back
Card 15
Front
**LOOK UP DIAGRAMS OF ATOMS SHOWING PROTONS, NEUTRONS AND ELECTRONS**
Back
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