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Which ofthe following statements is NOT true about the atom？
A) It has 6 protons in its nucleus.
B) It has 12 neutrons in its nucleus.
C) It has 6 electrons orbiting the nucleus
D) Its atomic number is 6
答案
更多“Which ofthe following statements is NOT true about the atom？ A) It has 6 protons in its nucleus. B”相关的问题
第1题
Which ofthe following phases is the weakest and leads to corrosion()
A．gamma
B．gamma 1
C．gamma 2
D．eta
第2题
Which is NOT the name ofthe recently discovered carbon structure that resembles a soccer ball？
A) Buckyball
B) C-60
C) Fullerene
D) Graphite
第3题
Which ofthe following properties ofdental materials is time-dependant()
A．creep
B．resilience
C．elastic limit
D．ultimate strength
第4题
Which ofthe following should not be used for fixed partial denture impressions()
A．agar
B．alginate
C．polyether
D．addition silicone
第5题
Which ofthe following materials typically releases the least amount offluoride()
A．Composite
B．Compomer
C．Glass-ionomer
D．Resin-modified glass ionomer
第6题
Which ofthe following is TRUE concerning a Single Composition Spherical alloy()
A．Achieves hi ghearly strength
B．Requires more mercury
C．Provides fighter interproximal contacts
D．Requires as small a condenser as possible
第7题
A．polyether
B．addition silicone
C．condensation silicone
D．agar
第8题
A．spatulation time
B．liquid-powder ratio
C．temperature ofthe mixing slab
D．number and size ofpowder increments
第9题
Which of the following promote microleakage ofamalgam()
A．the micron-size gao that always exists between the amalgam and tooth structure
B．amalgam’s higher coeffiaient ofthermal expansion compared to that of tooth structure
C．use poor condensation technique
D．all ofthe above
第10题
Which statement ofelastic modulus is NOT correct？
A) Elastic modulus is also known as Young's modulus
B) The higher the magnitude ofelastic modulus the stiffer the material
C) Elastic modulus can be measured graphically in the elastic region ofthe stress-strain diagram
D) The higher the magnitude of elastic modulus the weaker the interatomic bonding forces
第11题
A．the degree of polymerization of condensation polymers is initially high and then decreases with time
B．evaporation of a volatile by-product causes shrinkage ofthe set material
C．If left unpoured，condensation impression materials expand as they absorb water from air
D．condensation polymers will start to react with the polymer of the impression tray and cause distortion
