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Concept explainers
Interpretation:
Atoms of an element having different mass numbers need to be named.
Concept introduction:
The total number of protons in an atom is said to be its
The total number of neutrons and protons of an atom is said to be its mass number. By using the total number of protons and neutrons all the atoms can be identified. Mass number is denoted by “A”.
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Chapter 2 Solutions
Package: Chemistry - Atoms First And Connect With Learnsmart Access Card
- How do isotopes of a given element differ? How are they similar?arrow_forwardHow is the mass number related to the number of protons and neutrons an atom has?arrow_forwardXenon An isotope of xenon has an atomic number of 54 and contains 77 neutrons. What is the xenon isotope’s mass number?arrow_forward
- Define mass number. What is the difference between mass number and atomic mass?arrow_forwardCarbon A carbon atom has a mass number of 12 and an atomic number of 6. How many neutrons does it have?arrow_forwardWhat particles are found in the nucleus of an atom? What is the charge of the nucleus?arrow_forward
- Define the term atomic weight. Why might the values of atomic weights on a planet elsewhere in the universe be different from those on earth?arrow_forwardHow is an atom’s atomic number related to its number ofprotons? To its number of electrons?arrow_forwardThough the common isotope of aluminum has a mass number of 27, isotopes of aluminum have been isolated (or prepared in nuclear reactors) with mass numbers of 24, 25, 26, 28, 29, and 30. How many neutrons are present in each of these isotopes? Why are they all considered aluminum atoms, even though they differ greatly in mass? Write the atomic symbol for each isotope.arrow_forward
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