5. The table below shows the elements in the third period of the Periodic Table, thenumber of electrons in their outer energy level, their oxidation state in theircommon compounds and their melting points.elementNaMgAlSiP.CIArnumber of outer electrons12.47.8.oxidation state+1+2+3+4/-4-3-2-1melting point/°C986506601414317115-101-189Describe why silicon have significantly high melting point1)The no of outer electron will affect the effective nuclear charge. Explainil)ilI)Iv)how effective nuclear charge can cause the decreasing the atomic sizeExplain why Na, Mg and Al are good conductors of electricity.Which element exists as diatomic molecules of the type X2?

Elements have the tendency to attain stability by loosing or gaining electrons. In stable form…

5. The table below shows the elements in the third period of the Periodic Table, the number of electrons in their outer energy level, their oxidation state in their common compounds and their melting points. element Na Mg Al Si CI Ar number of outer electrons 1 3 oxidation state +1 +2 +3 +4/-4 -3 -2 -1 01 melting point/C 98 650 660 1414 317 115 -101 -189 Describe why sillicon have significantly high melting point The no of outer electron will affect the effective nuclear charge. Explain how effective nuclear charge can cause the decreasing the atomic size Explain why Na, Mg and Al are good conductors of electricity. Which element exists as diatomic molecules of the type X2? l) ilI) Iv) 7, P. 4.

5. The table below shows the elements in the third period of the Periodic Table, the number of electrons in their outer energy level, their oxidation state in their common compounds and their melting points. element Na Mg Al Si CI Ar number of outer electrons 1 3 oxidation state +1 +2 +3 +4/-4 -3 -2 -1 01 melting point/C 98 650 660 1414 317 115 -101 -189 Describe why sillicon have significantly high melting point The no of outer electron will affect the effective nuclear charge. Explain how effective nuclear charge can cause the decreasing the atomic size Explain why Na, Mg and Al are good conductors of electricity. Which element exists as diatomic molecules of the type X2? l) ilI) Iv) 7, P. 4.

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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Concept explainers

Group 13 Elements

In the periodic table, group 13 elements exist in the first p-block. There are six elements present in group 13, which include boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and element 113 (ununtrium, (Uut)). Group 13 elements are also designated as the boron family.

Question

5. The table below shows the elements in the third period of the Periodic Table, the
number of electrons in their outer energy level, their oxidation state in their
common compounds and their melting points.
element
Na
Mg
Al
Si
P.
CI
Ar
number of outer electrons
1
2.
4
7.
8.
oxidation state
+1
+2
+3
+4/-4
-3
-2
-1
melting point/°C
98
650
660
1414
317
115
-101
-189
Describe why silicon have significantly high melting point
1)
The no of outer electron will affect the effective nuclear charge. Explain
il)
ilI)
Iv)
how effective nuclear charge can cause the decreasing the atomic size
Explain why Na, Mg and Al are good conductors of electricity.
Which element exists as diatomic molecules of the type X2?

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