Fall Mid term Review

Fall Mid term Review

Assessment

Flashcard

Science

12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the atomic number of Barium (Ba)?

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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