Engineering materials In the context of this course what doe

Engineering materials

In the context of this course, what does noble mean? Refractory Unreactive Expensive Dense Rare Which type of bond results from the sharing of a pair of electrons between two atoms? Ionic Metallic Covalent Hydrogen Van der Waals Which type of bond occurs between molecules that contain hydrogen bonded to oxygen? Ionic Metallic Covalent Hydrogen Van der Waals Which type of bond results from induced dipoles? Ionic Metallic Covalent Hydrogen Van der Waals Which type of bond results from the interaction between permanent dipoles? Ionic Metallic Covalent Hydrogen Van der Waals Which of the following is a \"magic number\" of electrons? 12 10 8 6 4 What is the \"First Law\" of chemical bonding? Don\'t count electrons before they are magic. Dipoles almost always are magic. Mass is conserved. Energy is conserved. Ordinarily, matter is electrically neutral. To which category of elements does argon (Ar) belong? Alkaline earth metals Transition metals Alkali metals Noble gases Halogens To which category of elements does beryllium (Be) belong? Alkaline earth metals Transition metals Alkali metals Noble gases Halogens To which category of elements does titanium (Ti) belong? Alkaline earth metals Transition metals Alkali metals Noble gases Halogens To which category of elements does potassium (K) belong? Alkaline earth metals Transition metals Alkali metals Noble gases Halogens To which category of elements does fluorine (F) belong? Alkaline earth metals Transition metals Alkali metals Noble gases Halogens

Solution

1) B as noble gases does not react

2)C the sharing of electrons are involved in covalent bond

3)C the sharing of electrons are involved between hydrogen and oxygen, so cvalent bond

4)E

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