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Concept explainers
(a)
Interpretation:
The
Concept Introduction:
The number of protons indicates the atomic number of the element. It defines its characteristic place in the periodic table.
(b)
Interpretation:
The number of protons of nitrogen-13 and nitrogen-14 should be compared.
Concept Introduction:
The number of protons indicates the atomic number. It is present along with the neutrons in the nucleus of the atom. The protons are positively charged particles.
(c)
Interpretation:
The number of neutrons of nitrogen-13 and nitrogen-14 should be compared.
Concept Introduction:
The mass number is the total number of protons and neutrons present in the nucleus. Both constitute the mass of the element. Besides neutrons are neutrally charged particles.
(d)
Interpretation:
The mass number of nitrogen-13 and nitrogen-14 should be compared and the symbol of each isotope of nitrogen should be determined.
Concept Introduction:
The mass number is the total number of protons and neutrons present in the nucleus. Both added together will total to give mass of the element.
The isotope of any element is indicated by its atomic number and mass number. Both the numbers are displayed along with the element. The mass number is displayed as superscript while the atomic number is displayed as subscript as shown
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Chapter 10 Solutions
EBK GENERAL, ORGANIC, & BIOLOGICAL CHEM
- Indicate whether each of the following statements about magnesium isotopes is true or false. a. M1224g has one more proton than M1225g. b. M1224g and M1225g contain the same number of subatomic particles. c. M1224g has one less neutron than M1225g. d. M1224g and M1225g have different mass numbers.arrow_forwardThe following isotopes are important in nuclear power. Write their symbols in the form XZA. a. U-235 b. U-238 c. Pu-239 d. Xe-144arrow_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
- 14C is used in carbon dating of artifacts. Determine the number of protons and neutrons in 14C.arrow_forwardSelenium is widely sold as a dietary supplement. It is advertised to protect women from breast cancer. Write the nuclear symbol for naturally occurring selenium. It has 34 protons and 46 neutrons.arrow_forward
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