me following:- 1-Scientists classified elements in order to a relationship between elemenets and their 2-The most important attempts to classify elements .their study and to find ..and ...........properties. .......... are ..... ...tables 3- Mendeleev arranged the elements ascendingly according and to while mosely arranged them ascendingly according ...... ......... to.... .horizontal perioc 4- The modern periodic table consists of . and .....vertical groups. .... ... ..side of the perioC 5- Elements of p-block are located on the table.
me following:- 1-Scientists classified elements in order to a relationship between elemenets and their 2-The most important attempts to classify elements .their study and to find ..and ...........properties. .......... are ..... ...tables 3- Mendeleev arranged the elements ascendingly according and to while mosely arranged them ascendingly according ...... ......... to.... .horizontal perioc 4- The modern periodic table consists of . and .....vertical groups. .... ... ..side of the perioC 5- Elements of p-block are located on the table.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:ITIS
Science Department
2nd Prep.
1st Term
Questions on Lesson (1)
01:- Complete the following:-
1-Scientists classified elements in order to
a relationship between elemenets and
......and
.their study and to find
........
their
...properties .
2-The most important attempts to classify elements
are
and
.tables
3- Mendeleev arranged the elements ascendingly according
to
while mosely arranged them ascendingly according
••..
to..
.. .horizontal periods
4- The modern periodic table consists of
and
.vertical groups.
.. .side of the periodic
5- Elements of p-block are located on the.
table.
6- The atomic number of an element located in group (1A) and period (3)
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