What is the atomic number of Barium (Ba)?
Fall Mid term Review

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Science
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12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The atomic number of Barium (Ba) is 56.
2.
FLASHCARD QUESTION
Front
What is the formula to calculate mass from density and volume?
Back
Mass = Density × Volume.
3.
FLASHCARD QUESTION
Front
What is the mass of a block of steel with a density of 7.8 g/cm³ and a volume of 600 cm³?
Back
4680 g.
4.
FLASHCARD QUESTION
Front
What is the mass number of an atom?
Back
The mass number is the total number of protons and neutrons in the nucleus of an atom.
5.
FLASHCARD QUESTION
Front
Who proposed the idea that atoms could be divided?
Back
John Dalton proposed that atoms could be divided.
6.
FLASHCARD QUESTION
Front
What do all elements in the same period of the periodic table have in common?
Back
All elements in the same period have the same number of electron shells.
7.
FLASHCARD QUESTION
Front
What is the significance of the periodic table's groups?
Back
Elements in the same group have similar chemical properties due to having the same number of valence electrons.
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