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SGC-Chem Mid Term
Поширений: Watson
  • 1. A Ca+2 has how many protons?
A) 22
B) 26
C) 20
D) 14
  • 2. What type of bond would form between lithium and bromine?
A) covalent
B) ionic
C) metallic
  • 3. Electrons in a bond between hydrogen and chlorine would be
A) donated/accepted
B) shared
C) electrons would not be involved
  • 4. Electrons in a bond between potassium and oxygen would be
A) shared
B) elelctrons would not be involved
C) donated/accepted
  • 5. What formula would result from the bonding of Be and N?
A) BeN2
B) Be3N2
C) Be2N3
D) BeN
  • 6. Which element would have the LARGEST atomic radius
A) Fr
B) K
C) Rb
D) Li
  • 7. Which element would have the LARGEST electronegativity?
A) P
B) S
C) Ar
D) Cl
  • 8. Which of the following would have the LARGEST ionization energy?
A) K
B) Kr
C) Ca
D) As
  • 9. Why does atomic radius increase down a group?
A) more energy levels
B) higher mass
C) more protons
D) less energy levels
  • 10. What is the shape of an s orbital?
A) flower
B) sphere
C) dumbell
  • 11. How many orbitals total are found in a p sublevel?
A) 1
B) 2
C) 6
D) 3
  • 12. What element is this the electron configuration for 1s2 2s2 2p3?
A) Si
B) O
C) N
D) C
  • 13. After filling energy level 6s, Aufbau principlae says what energy level must be filled next?
A) 7s
B) 5d
C) 5f
D) 4f
  • 14. Which of the following is the correct nobel gas notation for Mn?
A) [Ar] 4s2 3d4
B) [Ne] 4s2 3d5
C) [Ar] 1s2 2s2 2p6 3s2 3p6 4s2 3d5
D) [Ar] 4s2 3d5
  • 15. According to Hund's rule,
A) The 1st p orbital must be full before the 2nd and 3rd p orbitals can accept any electrons
B) 4s must be filled before 3d
C) Orbitals can only hold 1 electron each
D) Each p orbital must contain 1 electron before any of them can accept a second
  • 16. Name the compound: BeF2
A) beryllium fluoride
B) beryllium (II) fluoride
C) beryllium difluoride
  • 17. Name the compound: FeP
A) iron (III)phosphate
B) iron (III) phosphide
C) iron phosphate
D) iron phosphide
  • 18. Name the compound: C2S5
A) carbon sulfide
B) carbon (V) sulfide
C) dicarbon pentasulfate
D) dicarbon pentasulfide
  • 19. Write the formula: potassium oxide
A) PO
B) KO
C) P2O
D) K2O
  • 20. Write the formula: lithium sulfite
A) LiSO3
B) Li2S
C) Li2SO3
D) Li2SO4
  • 21. Write the formula: hexaboron tribromide
A) B3Br6
B) BBr3
C) B6Br3
D) BBr
  • 22. What is the molar mass of Mg?
A) 24g/mol
B) 12g/mol
C) 22.4g/mol
D) 6.02x1023 g/mol
  • 23. We know that the bond between Cl and Cl is a ________________________ because the difference between the two atoms electronegativity is _____________________.
A) ionic, higher than 0.8
B) nonpolar covalent, between 0.3 and 0.8
C) polar covalent, less than 0.3
D) nonpolar covalent, less than 0.3
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