(a)
Interpretation:
Theelement is to be identified by the given
Concept Introduction:
The electrons in the atoms revolve around the nucleus in different orbits. The nucleus of the atom has two particles, protons and neutrons. The number of protons is the atomic number and the sum of the protons and neutrons is the mass number of the atom.
Answer to Problem 30P
The element with the given atomic number,
Explanation of Solution
Theelements are organized on the basis of their increasing atomic number in periodic table.
Each atom is assigned a special atomic number. The given atomic number
The numbers of protons as well as the number of electrons are equal to the atomic number of the element. The atomic number of neon is
The formula for mass number of an atom is given below.
Substitute the values in the above formula.
Therefore, the number of neutrons is
(b)
Interpretation:
The elements is to be identified by the given atomic number and mass number. The symbol of this element and number of electrons, protons and neutrons in its atom is to be stated.
Concept Introduction:
The electrons in the atoms revolve around the nucleus in different orbits. The nucleus of the atom has two particles, protons and neutrons. The number of protons is the atomic number and the sum of the protons and neutrons is the mass number of the atom.
Answer to Problem 30P
The element with the given atomic number
Explanation of Solution
The elements are organized on the basis of their increasing atomic number in periodic table.
Each atom is assigned a special atomic number. The given atomic number
The numbers of protons as well asthe number of electrons are equal to the atomic number of the element. The atomic number of Aluminum
The formula for mass number of an atom is given below.
Substitute the values in the above formula.
Therefore, the number of neutrons is
(c)
Interpretation:
The element is to be identified by the given atomic number and mass number. The symbol of this element and number of electrons, protons and neutrons in its atom is to be stated.
Concept Introduction:
The electrons in the atoms revolve around the nucleus in different orbits. The nucleus of the atom has two particles, protons and neutrons. The number of protons is the atomic number and the sum of the protons and neutrons is the mass number of the atom.
Answer to Problem 30P
The element with the given atomic number
Explanation of Solution
The elements are organized on the basis of their increasing atomic number in periodic table.
Each atom is assigned a special atomic number. The given atomic number
The numbers of protons as well asthe number of electrons are equal to the atomic number of the element. The atomic number of strontium
The formula for mass number of an atom is given below.
Substitute the values in theaboveformula.
Therefore, the number of neutrons is
(d)
Interpretation:
The elements is to be identified by the given atomic number and mass number. The symbol of this element and number of electrons, protons and neutrons in its atom is to be stated.
Concept Introduction:
The electrons in the atoms revolve around the nucleus in different orbits. The nucleus of the atom has two particles, protons and neutrons. The number of protons is the atomic number and the sum of the protons and neutrons is the mass number of the atom.
Answer to Problem 30P
The element with the given atomic number
Explanation of Solution
The elements are organized on the basis of their increasing atomic number in periodic table.
Each atom is assigned a special atomic number. The given atomic number
The numbers of protons as well asthe number of electrons are equal to the atomic number of the element. The atomic number of cesium is
The formula for mass number of an atom is given below.
Substitute the values in theabove formula.
Therefore, the number of neutrons is
(e)
Interpretation:
The elements is to be identified by the given atomic number and mass number. The symbol of this element and number of electrons, protons and neutrons in its atom is to be stated.
Concept Introduction:
The electrons in the atoms revolve around the nucleus in different orbits. The nucleus of the atom has two particles, protons and neutrons. The number of protons is the atomic number and the sum of the protons and neutrons is the mass number of the atom.
Answer to Problem 30P
The element with the given atomic number
Explanation of Solution
The elements are organized on the basis of their increasing atomic number in periodic table.
Each atom is assigned a special atomic number. The given atomic number
The numbers of protons as well asthe number of electrons are equal to the atomic number of the element. The atomic number of Nickel
The formula for mass number of an atom is given below.
Substitute the values in theabove formula.
Therefore, the number of neutrons is
(f)
Interpretation:
The elements is to be identified by the given atomic number and mass number. The symbol of this element and number of electrons, protons and neutrons in its atom is to be stated.
Concept Introduction:
The electrons in the atoms revolve around the nucleus in different orbits. The nucleus of the atom has two particles, protons and neutrons. The number of protons is the atomic number and the sum of the protons and neutrons is the mass number of the atom.
Answer to Problem 30P
The element with the given atomic number
Explanation of Solution
The elements are organized on the basis of their increasing atomic number in periodic table.
Each atom is assigned a special atomic number. The given atomic number
The numbers of protons as well as the number of electrons are equal to the atomic number of the element. The atomic number
The formula for mass number of an atom is given below.
Substitute the values in theabove formula.
Therefore, the number of neutrons is
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Chapter 2 Solutions
GEN ORG + BIO (LL) W/CONNECT
- The isotope of an unknown element, X, has a mass number of 79. The most stable ion of this isotope has 36 electrons and has a 2 charge. Which of the following statements is(are) true? For the false statements, correct them. a. This ion has more electrons than protons in the nucleus. b. The isotope of X contains 38 protons. c. The isotope of X contains 41 neutrons. d. The identity of X is strontium, Sr.arrow_forwardGive the complete symbol(ZAX), including atomic number and mass number, of (a) a nickel atom with 31 neutrons, (b) a plutonium atom with 150 neutrons, and (c) a tungsten atom with 110 neutrons.arrow_forwardUsing the information in Table 2.1, answer the following questions. In an ion with an unknown charge, the total mass of all the electrons was determined to be 2.55 1026 g. while the total mass of its protons was 5.34 1023 g. What is the identity and charge of this ion? What is the symbol and mass number of a neutral atom whose total mass of its electrons is 3.92 1026 g, while its neutrons have a mass of 9.35 1023 g?arrow_forward
- A hypothetical element X is found to have an atomic weight of 37.45 amu. Element X has only two isotopes, X-37 and X-38. The X-37 isotope has a fractional abundance of 0.7721 and an isotopic mass of 37.24. What is the isotopic mass of the other isotope?arrow_forwardWhich of the following is{are) correct? a. 40Ca2 contains 20 protons and 18 electrons. b. Rutherford created the cathode-ray tube and was the founder of the charge-to-mass ratio of an electron. c. An electron is heavier than a proton. d. The nucleus contains protons, neutrons, and electrons.arrow_forwardDefine mass number. What is the difference between mass number and atomic mass?arrow_forward
- Oxygen consists of three different _____, each having eight protons but different numbers of neutrons.arrow_forwardThe photo here depicts what happens when a coil of magnesium ribbon and a few calcium chips are placed in water. (a) Based on these observations, what might you expect to see when barium, another Croup 2A element, is placed in water? (b) Give the period in which each element (Mg. Ca, and Ba) is found. What correlation do you think you might find between the reactivity of these elements and their positions in the periodic table?arrow_forwardThe following table gives the number of protons and neutrons in the nuclei of various atoms. Which atom is the isotope of atom A? Which atom has the same mass number as atom A? Protons Neutrons Atom A 32 39 Atom B 33 38 Atom C 38 50 Atom D 32 38arrow_forward
- Give the atomic number (Z) and the mass number (A) for each of the following: a. a carbon atom with 8 neutrons b. an aluminum atom with 14 neutrons c. an argon atom with 20 neutrons d. a copper atom with 36 neutronsarrow_forwardGive the complete symbol(ZAX), including atomic number and mass number, for each of the following atoms: (a) magnesium with 15 neutrons, (b) titanium with 26 neutrons, and (c) zinc with 32 neutrons.arrow_forward
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