apply the laws of exponent to simplify the following
1. (4a⁴)³
2.(xy²) (x⁴y³)
3.(7tuv)⁰(v⁶)⁷
4. 16m⁸n¹¹
8m⁴n¹⁰
5.(h⁴j³)-³
Answers
Answer:
Periodic Classification of Elements Class 10 Notes Science Chapter 5
October 24, 2019 by Bhagya
CBSE NotesCBSE Notes ScienceNCERT Solutions Science
CBSE Class 10 Science Notes Chapter 5 Periodic Classification of Elements Pdf free download is part of Class 10 Science Notes for Quick Revision. Here we have given NCERT Class 10 Science Notes Chapter 5 Periodic Classification of Elements.
According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks.
CBSE Class 10 Science Notes Chapter 5 Periodic Classification of Elements
“The periodic table is a tabular method of displaying the elements in such a way, that the elements having similar properties occur in the same vertical column or group”.
Earlier attempts of the classification of elements: Dobereiner’s Triads, Newland’s law of octaves.
Dobereiner’s Triads: This classification is based on the atomic mass. According to this, when elements are arranged in order of increasing atomic masses, groups of three elements, having similar properties are obtained. The atomic mass of middle element of the triad being nearly equal to the average of the atomic masses of the other two elements.
For Example Li (6.9), Na (23), K (39).
Limitation: It fails to arrange all the known elements in the form of triads, even having similar properties.
Step-by-step explanation:
Periodic Classification of Elements Class 10 Notes Science Chapter 5
October 24, 2019 by Bhagya
CBSE NotesCBSE Notes ScienceNCERT Solutions Science
CBSE Class 10 Science Notes Chapter 5 Periodic Classification of Elements Pdf free download is part of Class 10 Science Notes for Quick Revision. Here we have given NCERT Class 10 Science Notes Chapter 5 Periodic Classification of Elements.
According to new CBSE Exam Pattern, MCQ Questions for Class 10 Science pdf Carries 20 Marks.
CBSE Class 10 Science Notes Chapter 5 Periodic Classification of Elements
“The periodic table is a tabular method of displaying the elements in such a way, that the elements having similar properties occur in the same vertical column or group”.
Earlier attempts of the classification of elements: Dobereiner’s Triads, Newland’s law of octaves.
Dobereiner’s Triads: This classification is based on the atomic mass. According to this, when elements are arranged in order of increasing atomic masses, groups of three elements, having similar properties are obtained. The atomic mass of middle element of the triad being nearly equal to the average of the atomic masses of the other two elements.
For Example Li (6.9), Na (23), K (39).
Limitation: It fails to arrange all the known elements in the form of triads, even having similar properties.