Which of the following statements are correct A positive ion will be attracted t

Question

Which of the following statements are correct A positive ion will be attracted to any negative ion. A positive ion can be bonded to any neighboring negative ion. if it is close enough. A sodium ion is only bonded to the chloride ion it donated its electron to. There is a bond between the ions in each molecule, but no bonds between the molecules. Which of the following are basic component of Materials Science? Cost Structure Performance All of the above Strong and brittle materials Polymers Ceramics Metals Semiconductors Which of the following are strong bonds? van der Waals bond Covalent bond Metallic bond Ionic bond Atomic packing factor is Distance between two adjacent atoms Projected area fraction of atoms on a plane Volume fraction of atoms in cell None The type of unit cell obtained show n in the figure beside is Body centered cubic Primitive cubic Face centered cubic Hexagonal The type of cell show n in figure beside is BCC FCC HCP CCP The number of atoms per a single primitive cubic unit cell is 8 4 2 1 The number of atoms per a single body centered unit cell is 1 2 4 9 The number of atoms in hexagonal cell is 2 4 6 12

Explanation / Answer

1) a

2) b

3) b

4) b

5) c

6) b

7) b

8) d

9) b

10) c

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