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Category > Chemistry Posted 13 Feb 2024 My Price 8.00

Chemistry Principles EHS Unit 2 Quiz

Question 1

1 / 1 pts

The __________ principle states that no two electrons in the same atom can have the same set of four quantum numbers

 

  Dalton 

  Bohr 

  Pauli Exclusion 

  Democritus 

 

Question 2

1 / 1 pts

The __________ states that it is impossible to determine simultaneously both the exact location and exact velocity of an electron or any other particle.

 

  Modern Atomic Theory 

  Plum Pudding Model 

  Bohr Rule 

  Heisenberg uncertainty principle 

 

Question 3

1 / 1 pts

__________ electrons dictate the chemical behavior of each element.

 

  Valence 

  Transition 

  D-block 

  Core 

 

Question 4

1 / 1 pts

When some substances are heated to high enough temperatures, they give off light of various wavelengths called __________.

 

  magnetism 

  photons 

  emission spectra 

  radiation 

 

Question 5

1 / 1 pts

Light is sometimes referred to as particles called __________.

 

  atoms 

  photons 

  electrons 

  neutrons 

 

IncorrectQuestion 6

0 / 1 pts

The color of light is related to its __________.

 

  quantum number 

  frequency 

  mass number 

  wavelength 

 

Question 7

1 / 1 pts

Electrons carry a __________ charge.

 

  quantum 

  neutral 

  negative 

  positive 

 

Question 8

1 / 1 pts

__________ affinity is the amount of energy required for an electron to be added to a neutral atom in gas form.

 

  Ionic 

  Neutron 

  Isoelectronic 

  Electron 

 

Question 9

1 / 1 pts

Which term means that two atoms have the same electron configuration?

 

  Ionization 

  Affinity 

  Isoelectronic 

  Electronegativity 

 

Question 10

1 / 1 pts

The s-block and p-block elements together are referred to as the __________ elements.

 

  d-block 

  halogens 

  representative 

  f-block 

 

Question 11

1 / 1 pts

A(n) __________ is an atom or group of bonded atoms that has a positive  charge.

 

  proton 

  isotope 

  cation 

  anion 

 

Question 12

1 / 1 pts

Which of these is classified as an alkaline earth metal?

 

  Helium 

  Fluorine 

  Magnesium 

  Neon 

 

Question 13

1 / 1 pts

__________ ions form when a single atom gains or loses electrons.

 

  Oxyanions 

  Monatomic 

  Ternary 

  Polyatomic 

 

Question 14

1 / 1 pts

According to Democritus, everything is composed of __________.

 

  water 

  iron 

  oxygen 

  atoms 

 

Question 15

1 / 1 pts

Neutrons carry a __________ charge.

 

  positive 

  negative 

  quantum 

  neutral 

 

Question 16

1 / 1 pts

The __________ is an instrument used to determine the masses of atoms, molecules, and molecular fragments.

 

  photoelectric effect 

  plum pudding model 

  electromagnetic spectrum 

  mass spectrometer 

 

Question 17

1 / 1 pts

Calculate the frequency in Hz of light with a wavelength of 4.7 x 102 nm. 

 

  4.7 x 10-7 Hz

  7.69 x 105 Hz

  14.1 x 1014Hz

  6.38 x 1014 Hz

 

Question 18

1 / 1 pts

Which of these is classified as a noble gas?

 

  Iodine 

  Calcium 

  Helium 

  Sodium 

 

Question 19

1 / 1 pts

An element’s placement in the periodic table is determined by its __________ configuration.

 

  quantum 

  neutron 

  proton 

  electron 

 

Question 20

1 / 1 pts

The __________ principle states that all lower energy orbitals must be filled before electrons can be added to a higher energy orbital.

 

  Hund 

  Aufbau 

  Bohr 

  Atomic 

 

Question 21

1 / 1 pts

A(n) __________ is an element that is a poor conductor of heat and electricity.

 

  ion 

  isotope 

  compound 

  nonmetal 

 

Question 22

1 / 1 pts

__________ energy is the energy required to remove an electron from an atom.

 

  Configuration 

  Distillation 

  Isoelectric 

  Ionization 

 

Question 23

1 / 1 pts

A(n) __________ is an atom or group of bonded atoms that has a negative charge.

 

  electron 

  cation 

  anion 

  isotope 

 

Question 24

1 / 1 pts

__________ number is used to describe the location of an electron in an associated atom.

 

  Atomic 

  Mass 

  Aufbau 

  Quantum 

 

Question 25

1 / 1 pts

The region in space where an electron is most likely to be found is called a(n) __________.

 

  configuration 

  sublevel 

  orbital 

  isotope 

 

Answers

(118)
Status NEW Posted 13 Feb 2024 03:02 AM My Price 8.00

Che-----------mis-----------try----------- Pr-----------inc-----------ipl-----------es -----------EHS-----------  -----------Uni-----------t 2----------- Qu-----------iz-----------

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1707796592-Faith Andrews Quiz History Unit 2 Quiz.pdf
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