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7th Voltz_MaeMae PS > Test - Atomic Structure > Flashcards

Test - Atomic Structure Flashcards

1
Q
  1. The nucleus of isotope A of an element has a larger mass than isotope B of the same element. The number of neutrons in the nucleus of isotope A is _________ the number of neutrons in the nucleus of isotope B
A

Greater than the number of neutrons

NB pg 8

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2
Q
  1. Which of the following elements would be the least reactive?
A

Argon

NB pg 16

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3
Q
  1. What is the correct electron arrangement for sulfur?
A

2-8-6

NB pg 16

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4
Q
  1. An atom is electrically neutral because
A

The number of protons and electrons are equal

NB pg 5

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5
Q
  1. Each family in the periodic table has its own characteristic properties based on the number of
A

Valence electrons

NB pg 5

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6
Q
  1. Substances that CANNOT be broken down chemically into other substances are
A

Elements

NB pg 5

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7
Q
  1. The measurement of how much matter in an object contains is its
A

Mass

NB pg 7

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8
Q
  1. Which of the following elements would be the most reactive?
A

Iodine

NB pg 16

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9
Q
  1. Which of the following elements would be the best conductor of electricity?
A

Silver

NB pg 16

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10
Q
  1. An unstable nucleus results from too many or too few
A

Neutrons

NB pg 5

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11
Q
  1. The atomic number of magnesium is 12. Therefore it’s nucleus must contain
A

12 protons and no electrons

NB pg 16

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12
Q
  1. Electrons travel in fixed orbits around the nucleus of the atom
A

Niels Bohr

NB pg 3

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13
Q
  1. Solid sphere model; elements are atoms with different masses
A

Dalton

NB pg 3

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14
Q
  1. Named the atom based on the Greek word meaning indivisible
A

Democritus

NB pg 3

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15
Q
  1. Arranged the elements on the periodic table based on atomic number
A

Henry Mosley

NB pg 4

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16
Q
  1. Arranged the elements on the periodic table based on atomic mass
A

Dmitri Mendeleev

NB pg 4

17
Q
  1. Nuclear model; gold foil experiment allowed him to discover that the nucleus was the positively charged center of the atom surround by negatively charged electrons
A

Ernest Rutherford

NB pg 4

18
Q
  1. Plum pudding model; atom is positive sphere with negatively charged particles evenly embedded throughout
A

JJ Thompson

NB pg 4

19
Q
  1. How do you write a nuclear form isotope?
A

You write the atomic mass small in the corner with the symbol for the element
NB pg 8

20
Q
  1. List three elements from the group containing the most reactive non metals
A

F, Cl, Br

NB pg 16

21
Q
  1. In each period how does the number of electrons in each kind of atom change from left to right between Groups 1 and 2? Explain how you know.
A

Number of electrons increases by 1 in a period moves as moves across the period (atomic mass)
NB pg 16

7th Voltz_MaeMae PS (9 decks)

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