Each of the following were important contributors to what we know about atomic structure, the elements or radioactivity: Bohr Bequrel Curie Dalton The Greeks Moseley Thomson Rutherford Select from the list above one answer to each of the following. (a) Who proposed the early theory that matter consists of the four elements: earth, air, fire and water? (b) Who described atoms as small indivisible particles? (c) Who identified electrons as sub-atomic particles? (d) Who is credited with the discovery of the nucleus of the atom? (e) Who proposed a model for the atom in which the electrons circulated around the nucleus in fixed energy levels or orbits? (f) Who discovered that uranium salts emitted radiation? (g) Who received a Nobel Prize for the isolation of the elements polonium and radium? (h) Whose determination of the charge on the nucleus of atoms allowed the systematic arrangement of the elements in the modern periodic table?

Leaving Cert Chemistry Radioactivity: Each of the following were impor

Each of the following were important contributors to what we know about atomic structure, the elements or radioactivity: Bohr Bequrel Curie Dalton The Greeks Moseley Thomson Rutherford Select from the list above one answer to each of the following - Leaving Cert Chemistry - Question 5 - 2005

Question 5

Each of the following were important contributors to what we know about atomic structure, the elements or radioactivity: Bohr Bequrel Curie Dalton The Greeks Mosele... show full transcript

Worked Solution & Example Answer:Each of the following were important contributors to what we know about atomic structure, the elements or radioactivity: Bohr Bequrel Curie Dalton The Greeks Moseley Thomson Rutherford Select from the list above one answer to each of the following - Leaving Cert Chemistry - Question 5 - 2005

Step 1

Who proposed the early theory that matter consists of the four elements: earth, air, fire and water?

96%

114 rated

Answer

The Greeks proposed the early theory that matter consists of the four elements: earth, air, fire, and water.

Step 2

Who described atoms as small indivisible particles?

99%

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Answer

Dalton described atoms as small indivisible particles.

Step 3

Who identified electrons as sub-atomic particles?

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Answer

Thomson identified electrons as sub-atomic particles.

Step 4

Who is credited with the discovery of the nucleus of the atom?

98%

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Answer

Rutherford is credited with the discovery of the nucleus of the atom.

Step 5

Who proposed a model for the atom in which the electrons circulated around the nucleus in fixed energy levels or orbits?

97%

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Answer

Bohr proposed a model for the atom in which the electrons circulated around the nucleus in fixed energy levels or orbits.

Step 6

Who discovered that uranium salts emitted radiation?

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Answer

Bequrel discovered that uranium salts emitted radiation.

Step 7

Who received a Nobel Prize for the isolation of the elements polonium and radium?

96%

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Answer

Curie received a Nobel Prize for the isolation of the elements polonium and radium.

Step 8

Whose determination of the charge on the nucleus of atoms allowed the systematic arrangement of the elements in the modern periodic table?

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104 rated

Answer

Moseley's determination of the charge on the nucleus of atoms allowed the systematic arrangement of the elements in the modern periodic table.

Each of the following were important contributors to what we know about atomic structure, the elements or radioactivity: Bohr Bequrel Curie Dalton The Greeks Moseley Thomson Rutherford Select from the list above one answer to each of the following - Leaving Cert Chemistry - Question 5 - 2005

Who proposed the early theory that matter consists of the four elements: earth, air, fire and water?

Who described atoms as small indivisible particles?

Who identified electrons as sub-atomic particles?

Who is credited with the discovery of the nucleus of the atom?

Who proposed a model for the atom in which the electrons circulated around the nucleus in fixed energy levels or orbits?

Who discovered that uranium salts emitted radiation?

Who received a Nobel Prize for the isolation of the elements polonium and radium?

Whose determination of the charge on the nucleus of atoms allowed the systematic arrangement of the elements in the modern periodic table?

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