Quiz
Chemistry chapter 1
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Perguntas do quiz (24)
1Rutherford's classic experiment provided evidence for a nuclear atomic model when atoms in a thin sheet of gold foil scattered a beam of
- ACathode rays
- Bx-rays
- CAlpha particles
- Delectrons
2which of the following statements is not Bohr's model of the hydrogen atom?
- Athe energy of an electron is quantized
- Bthe electron in the orbit nearest to the nuleus has the lowest energy
- Cthe energy of electron is not quantized
- Dthe electron orbits the nucleus
3which atom has the ground-state electron configuration of (Ne) 3s^2 3p^4
- AMagnesium
- BSilicon
- Csulfur
- DArgon
4which of the following not used to determine an electron configuration for an atom?
- AHund's rule
- Bthe Pauli exclusion principle
- CHeisenberg's uncertainty principle
- Dthe Aufbau principle
5what of the following does not have an electron configuration ending with 3s^2 3p^6
- Achloride ion
- Bsulfide ion
- CAluminum ion
- DCalcium ion
6which of the following models was developed to replace Bohr's atomic model
- AQuantum mechanics
- Btransition model
- Ctheory of relativity
- Dspectroscopy
7the orientation of an orbital in space relative to the other orbitals in the atom is defined by the
- Aprimary quantum numbers
- Bsecondary quantum numbers
- Cspin quantum numbers
- Dmagnetic quantum numbers
8how many nutrons does the argon isotopes 37
18 Ar contain?- A18
- B19
- C37
- D55
9which of the following describe the Aufbau principle?
- Aeach electron is added to the lowest energy orbital available
- Bthe lowest energy configuration for an atom is the one with the maximum number of unpaired electrons
- Cno 2 electrons in the same atom can have the same set of four quantum numbers
- Dnone of the above
10which of the following is true about proton?
- Ait is negatively charged
- Bit was the last subatomic particles to be discovered
- Cits mass is less than that of an electron
- Dit is located in the nucleus
11Rutherford's gold foil experiment showed that
- Amost of the gold atom is empty in space
- Bthe positive charges in a gold tom are concentrated in a small volume
- Cmost of the alpha particles went through
- Dall the above are true
12how many sublevels can be presented in the third principal energy level?
- A3
- B6
- C9
- D12
13what are the possible value of ml for l=1
- A0
- B-1,0,1
- C-2,-1,0,1,2
- D-3,-2,-1,0,1,2,3
14which of the following lists the allowed sunshells for n= 3
- A1s,2s,2p,3s,3p,3d
- B3s,3p,3d
- C3s,3p
- D3s,3p,3d,3f
15the sodium ion, Na+has
- A11protons and 11 electrons
- B12 protons and 11 electrons
- C11 protons 10 electrons
- D10 proton 11 electrons
16which of these statement correctly describe the nucleus of an atom
- Ait is neutral
- Bit is positively charged and very dense
- Cit contains protons and electrons
- Dit has small mass compares to the rest of the atom
17a bromine ion has the same number of electrons as
- AI
- BCl
- CAr
- Dkr
18which of the following correctly describe a neutron
- Ait has approximately same mass as proton
- Bit is located in the nucleus
- Cit has no charge
- Dall of the above
19the mass number of an atom
- Athe number of proton in the nucleus
- Bthe sum of proton and electron
- Cthe sum of proton and neutron
- Dthe sum of protpon, neutron, electrons
20which of the following pair of symbol represent isotopes of the same element
- A12 12
c and c
6 7 - B12 12
c and c
6 6 - C12 13
c and c
6 7 - D12 14
c and c
6 6
- A12 12
21A neutron has an atomic number of 26 and a mass number of 58. How many protons, neutrons and electrons does the atom have?
- A26 protons, 26 neutrons, 26 electrons
- B58 protons, 26 neutrons, 26 electrons
- C26 protons, 32 neutrons, 26 electrons
- D26 protons, 58 neutrons, 32 electrons
22what is the maximum number of electron that can occupy the third energy level
- A2
- B8
- C18
- D32
23which of the following orbital designation is inncorrect
- A1p
- B2d
- C3f
- Dall of the above
24what element has electron configuration (Ar) 4s^2 3d^10 4p^5
- ABr
- BCl
- CPb
- DKr
Informações
- Descrição
- Quiz sobre Chemistry chapter 1, criado por sarjana.moren em 09-01-2016.
- Autor
- sarjana.moren
- Idioma
- English
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