(a)
Interpretation:
The number of protons, neutrons and electrons in Sr-87 needs to be determined.
Concept Introduction :
The
The sum of the number of neutrons and protons in the nucleus of an atom represents mass number.
(b)
Interpretation:
The most
Concept Introduction :
From the given set of isotopes of an atom, the most abundant isotope will have maximum percentage abundance.
(c)
Interpretation:
The number of neutrons in Sr-84 needs to be determined.
Concept Introduction :
The atomic number represents the number of electrons revolving round the nucleus in an atom. It also represents the number of protons in the nucleus of an atom.
The sum of the number of neutrons and protons in the nucleus of an atom represents mass number.
(d)
Interpretation:
This is to be explained why any isotope of strontium does not have atomic mass of 87.62 amu.
Concept Introduction :
Atomic mass of any element listed on periodic table is
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Basic Chemistry
- 4.82 For each of the following, write the symbol and name for X and the number of protons and neutrons. Which are isotopes of each other? (4.4, 4.5) a. 124x A 47 b. 16x 116x 49 C. 50 d. 124x 50 116X e. 48arrow_forward4.94 Indicate if each of the following statements is true or false: (4.3) a. The neutron has no net charges. b. Most of the mass of an atom is due to the protons and electrons. c. The total charge of the electrons is equal, but opposite, to the charge of the nucleus. d. The proton and the electron have about the same mass. e. The mass number is the number of protons. 4.10arrow_forward28. Completely describe the orbitals found in the fourth energy level. How many electrons can be found in a full fourth energy level? Give an example of an element that has its valence electrons in the fourth energy level. (3.3) K/Uarrow_forward
- 4.121 Complete the following table: (4.3) Namere is ONE O tong of the Element bots he Magnesium Joghe amouse. The Atomic Symbolbo 80 Se 228 F 88 Ra Number of Protons 28 Number of Neutrons 34 14 Number of Electrons Avearrow_forwardGive the symbol of the element that has the (5.6)a. largest atomic size in Period 5b. largest atomic size in Group 2A (2)c. highest ionization energy in Group 8A (18)d. lowest ionization energy in Period 2e. abbreviated electron configuration [Kr]5s24d105p2.arrow_forward11:11 ÔN A D Instructions - Classes - C... https://coetbschemfabon.neolm. Fill in the blanks: (4.1) Write the complete atomic/nuclide symbol for (a) an ion fluoride that contains 9 protons and 10 neutrons in the nucleus and 10 extranuclear electrons? (b) an ion of iron that contains 26 protons and 30 neutrons in the nucleus and 24 extranuclear electrons? Note: Use the "^" caret symbol to denote exponential components..for Ca¯“can be written as example, 20 "20^40Ca^-2" (atomic number written first). Answer: (a) mass number nuclide symbol (b) mass number nuclide symbol Continue > Status Dausearrow_forward
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