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Questions and Answers
If you were to synthesize a molecule requiring an element with approximately 79 atomic mass units, which of the following would be most suitable based on this data?
If you were to synthesize a molecule requiring an element with approximately 79 atomic mass units, which of the following would be most suitable based on this data?
- Bromine
- Arsenic
- Krypton
- Selenium (correct)
Considering the table of elements, which element's atomic mass deviates the most from being exactly double its atomic number?
Considering the table of elements, which element's atomic mass deviates the most from being exactly double its atomic number?
- Beryllium
- Magnesium
- Calcium
- Iron (correct)
Suppose you are designing a novel semiconductor material, and you need an element with an atomic mass between that of Silicon and Phosphorus. Based on the reference data, which of the following is the most plausible 'placeholder' element?
Suppose you are designing a novel semiconductor material, and you need an element with an atomic mass between that of Silicon and Phosphorus. Based on the reference data, which of the following is the most plausible 'placeholder' element?
- Magnesium
- Sulfur
- Aluminum
- There is no suitable element available in the reference data within the specified mass range. (correct)
An experiment requires an element with an atomic number greater than 30 but an atomic mass less than 75. Which of the following elements would be most appropriate according to the provided data?
An experiment requires an element with an atomic number greater than 30 but an atomic mass less than 75. Which of the following elements would be most appropriate according to the provided data?
Analyzing the relationship between atomic number and atomic mass, which of the following elements exhibits the smallest ratio of atomic number to atomic mass?
Analyzing the relationship between atomic number and atomic mass, which of the following elements exhibits the smallest ratio of atomic number to atomic mass?
Upon examination of the data, which element has an atomic mass closest to $\sqrt{1000}$?
Upon examination of the data, which element has an atomic mass closest to $\sqrt{1000}$?
Which of the following pairs of elements have the smallest difference in atomic mass between them?
Which of the following pairs of elements have the smallest difference in atomic mass between them?
If isotopes were not considered, and atomic mass was solely determined by the number of protons and neutrons, which of these elements would have the least likely atomic mass, given its atomic number?
If isotopes were not considered, and atomic mass was solely determined by the number of protons and neutrons, which of these elements would have the least likely atomic mass, given its atomic number?
Given only the data presented, what would be the predicted atomic mass of an element with an atomic number of 20.5, assuming a linear interpolation between elements?
Given only the data presented, what would be the predicted atomic mass of an element with an atomic number of 20.5, assuming a linear interpolation between elements?
How many elements listed have an atomic mass that is a prime number?
How many elements listed have an atomic mass that is a prime number?
Flashcards
Atomic Number (Z)
Atomic Number (Z)
The number of protons in an atom's nucleus, uniquely identifying an element.
Atomic Mass
Atomic Mass
The total mass of protons and neutrons in an atom's nucleus, measured in atomic mass units (u).
Hydrogen (H)
Hydrogen (H)
Element with atomic number 1 and atomic mass of approximately 1 u.
Helium (He)
Helium (He)
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Carbon (C)
Carbon (C)
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Oxygen (O)
Oxygen (O)
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Sodium (Na)
Sodium (Na)
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Iron (Fe)
Iron (Fe)
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Copper (Cu)
Copper (Cu)
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Silver (Ag)
Silver (Ag)
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Study Notes
- Listed are the approximate atomic masses of the elements with atomic numbers 1 to 50.
Element List
- Hydrogen (1) has an atomic mass of 1u.
- Helium (2) has an atomic mass of 4u.
- Lithium (3) has an atomic mass of 7u.
- Beryllium (4) has an atomic mass of 9u.
- Boron (5) has an atomic mass of 11u.
- Carbon (6) has an atomic mass of 12u.
- Nitrogen (7) has an atomic mass of 14u.
- Oxygen (8) has an atomic mass of 16u.
- Fluorine (9) has an atomic mass of 19u.
- Neon (10) has an atomic mass of 20u.
- Sodium (11) has an atomic mass of 23u.
- Magnesium (12) has an atomic mass of 24u.
- Aluminum (13) has an atomic mass of 27u.
- Silicon (14) has an atomic mass of 28u.
- Phosphorus (15) has an atomic mass of 31u.
- Sulfur (16) has an atomic mass of 32u.
- Chlorine (17) has an atomic mass of 35u.
- Argon (18) has an atomic mass of 40u.
- Potassium (19) has an atomic mass of 39u.
- Calcium (20) has an atomic mass of 40u.
- Scandium (21) has an atomic mass of 45u.
- Titanium (22) has an atomic mass of 48u.
- Vanadium (23) has an atomic mass of 51u.
- Chromium (24) has an atomic mass of 52u.
- Manganese (25) has an atomic mass of 55u.
- Iron (26) has an atomic mass of 56u.
- Cobalt (27) has an atomic mass of 59u.
- Nickel (28) has an atomic mass of 59u.
- Copper (29) has an atomic mass of 64u.
- Zinc (30) has an atomic mass of 65u.
- Gallium (31) has an atomic mass of 70u.
- Germanium (32) has an atomic mass of 73u.
- Arsenic (33) has an atomic mass of 75u.
- Selenium (34) has an atomic mass of 79u.
- Bromine (35) has an atomic mass of 80u.
- Krypton (36) has an atomic mass of 84u.
- Rubidium (37) has an atomic mass of 85u.
- Strontium (38) has an atomic mass of 88u.
- Yttrium (39) has an atomic mass of 89u.
- Zirconium (40) has an atomic mass of 91u.
- Niobium (41) has an atomic mass of 93u.
- Molybdenum (42) has an atomic mass of 96u.
- Technetium (43) has an atomic mass of 98u.
- Ruthenium (44) has an atomic mass of 101u.
- Rhodium (45) has an atomic mass of 103u.
- Palladium (46) has an atomic mass of 106u.
- Silver (47) has an atomic mass of 108u.
- Cadmium (48) has an atomic mass of 112u.
- Indium (49) has an atomic mass of 115u.
- Tin (50) has an atomic mass of 119u.
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