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SGC-Chem Mid Term
Συνεισφορά από: Watson
  • 1. A Ca+2 has how many protons?
A) 14
B) 20
C) 22
D) 26
  • 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) electrons would not be involved
B) donated/accepted
C) shared
  • 4. Electrons in a bond between potassium and oxygen would be
A) donated/accepted
B) shared
C) elelctrons would not be involved
  • 5. What formula would result from the bonding of Be and N?
A) BeN
B) Be2N3
C) Be3N2
D) BeN2
  • 6. Which element would have the LARGEST atomic radius
A) Rb
B) Li
C) K
D) Fr
  • 7. Which element would have the LARGEST electronegativity?
A) Cl
B) Ar
C) S
D) P
  • 8. Which of the following would have the LARGEST ionization energy?
A) Kr
B) K
C) Ca
D) As
  • 9. Why does atomic radius increase down a group?
A) less energy levels
B) higher mass
C) more protons
D) more energy levels
  • 10. What is the shape of an s orbital?
A) flower
B) dumbell
C) sphere
  • 11. How many orbitals total are found in a p sublevel?
A) 6
B) 3
C) 1
D) 2
  • 12. What element is this the electron configuration for 1s2 2s2 2p3?
A) O
B) Si
C) C
D) N
  • 13. After filling energy level 6s, Aufbau principlae says what energy level must be filled next?
A) 5d
B) 4f
C) 5f
D) 7s
  • 14. Which of the following is the correct nobel gas notation for Mn?
A) [Ne] 4s2 3d5
B) [Ar] 4s2 3d4
C) [Ar] 1s2 2s2 2p6 3s2 3p6 4s2 3d5
D) [Ar] 4s2 3d5
  • 15. According to Hund's rule,
A) 4s must be filled before 3d
B) Orbitals can only hold 1 electron each
C) Each p orbital must contain 1 electron before any of them can accept a second
D) The 1st p orbital must be full before the 2nd and 3rd p orbitals can accept any electrons
  • 16. Name the compound: BeF2
A) beryllium difluoride
B) beryllium (II) fluoride
C) beryllium fluoride
  • 17. Name the compound: FeP
A) iron (III)phosphate
B) iron (III) phosphide
C) iron phosphide
D) iron phosphate
  • 18. Name the compound: C2S5
A) dicarbon pentasulfide
B) carbon sulfide
C) carbon (V) sulfide
D) dicarbon pentasulfate
  • 19. Write the formula: potassium oxide
A) K2O
B) P2O
C) KO
D) PO
  • 20. Write the formula: lithium sulfite
A) LiSO3
B) Li2SO4
C) Li2SO3
D) Li2S
  • 21. Write the formula: hexaboron tribromide
A) BBr3
B) B3Br6
C) B6Br3
D) BBr
  • 22. What is the molar mass of Mg?
A) 6.02x1023 g/mol
B) 24g/mol
C) 22.4g/mol
D) 12g/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, less than 0.3
C) nonpolar covalent, between 0.3 and 0.8
D) polar covalent, less than 0.3
Οι μαθητές που έκαναν αυτή την δοκιμασία είδαν επίσης :
Chem final spring 2015
WHS-Chem Test 3
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