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Chapter 4: Problem 1

State whether the following statements are true or false. Modern periodic table is based on atomic number.

Short Answer

Expert verified
Short Answer: The statement "Modern periodic table is based on atomic number" is true. The modern periodic table organizes elements based on their increasing atomic number, which is the number of protons present in the nucleus of an atom. This arrangement allows elements with similar properties to be placed in the same group, and elements with similar electron configurations to be placed in the same period.

Step by step solution

01

Understanding the Modern Periodic Table

The modern periodic table is a system used to organize the elements based on their properties, and it helps to predict the behavior of an element. It contains elements arranged by increasing atomic number in different groups and periods. Firstly, we need to understand what atomic number is.
02

Define Atomic Number

Atomic number is the number of protons present in the nucleus of an atom. This number is unique for each element and determines the element's identity. For example, if an atom has an atomic number of 1, it is hydrogen; if it has an atomic number of 6, it is carbon.
03

Comparing the Statement to the Modern Periodic Table Basis

As we have seen in Step 1, the modern periodic table is indeed based on the atomic number of elements. This means that elements with similar properties are placed in the same group, while elements with similar electron configurations are placed in the same period.
04

Answering the Statement

Based on our analysis in Steps 1-3, we can conclude that the statement "Modern periodic table is based on atomic number" is true.

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Most popular questions from this chapter

Which of the following elements acts as the best reducing agent? (a) \(\mathrm{Na}\) (b) \(\mathrm{Cl}\) (c) \(\mathrm{Mg}\) (d) \(\mathrm{F}\)

Assertion (A): First ionization energy of beryllium is greater than that of boron. Reason (R): Boron has larger size than beryllium. (a) Both \(\mathrm{A}\) and \(\mathrm{R}\) are true and \(\mathrm{R}\) is the correct explanation of \(\mathrm{A}\). (b) Both \(\mathrm{A}\) and \(\mathrm{R}\) are true and \(\mathrm{R}\) is not the correct explanation of \(A\). (c) \(\mathrm{A}\) is true, \(\mathrm{R}\) is false (d) \(\mathrm{A}\) is false, \(\mathrm{R}\) is true

The first ionization energies of \(\mathrm{Li}, \mathrm{Be}, \mathrm{B}\) and \(\mathrm{C}\) are in the order: (a) \(\mathrm{Li}>\mathrm{Be}<\mathrm{B}<\mathrm{C}\) (b) \(\mathrm{Li}<\mathrm{Be}>\mathrm{B}<\mathrm{C}\) (c) \(\mathrm{Li}>\mathrm{Be}>\mathrm{B}>\mathrm{C}\) (d) \(\mathrm{Li}<\mathrm{Be}>\mathrm{B}>\mathrm{C}\)

Fill in the blanks. The ascending order of the first ionization potential of \(\mathrm{C}, \mathrm{N}, \mathrm{O}\) and \(\mathrm{F}\) is ____.

The formulae of oxides formed when barium burns in presence of oxygen are (a) \(\mathrm{Ba}_{2} \mathrm{O}, \mathrm{BaO}\) (b) \(\mathrm{BaO}, \mathrm{BaO}_{2}\) (c) \(\mathrm{BaO}, \mathrm{Ba}_{2} \mathrm{O}_{2}\) (d) \(\mathrm{B}_{2} \mathrm{O}, \mathrm{B} a \mathrm{O}_{2}\)
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