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6. How many orbitals with l = 2 can exist in a shell?
7. The atomic masses of 2 members of a triad are 28 and 119. What is the identity of the third member?
- Germanium
- Tungsten
- Tantalum
- Arsenic
8. Which of the following is a characteristic of bonds between metals and nonmetals?
- Directionality
- An electron sea
- Bonds which are broken in water
- Bonds which are broken on melting
9. A substance with a fixed composition that is chemically decomposable is called a/an:
- Compound
- Solution
- Element
- Atom
10. Which of the following bonds is the most polar?
11. What is the mass percentage of magnesium in MgCl2?
12. Which of the following sets of coefficients correctly balance the equation shown? wBa3N2 + xH2O → yBa(OH)2 + zNH3
- 1 6 3 1
- 1 6 3 2
- 1 3 3 1
- 1 3 3 2
13. The bonding in BaCl2 is best described as:
- Pure Ionic
- Pure Covalent
- Ionic with covalent character
- Polar Covalent
14. What is the formula of the compound phosphorus forms with hydrogen?