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2nd Jordan_Luke PS > Test: Atomic Structure > Flashcards

Test: Atomic Structure Flashcards

1
Q
  1. What is the total number of electrons on the outer shell of a sodium atom?
A

1

Nb Pg. 9

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2
Q

6 which word below below represents the word period on the periodic table?

A

Energy level

Nb Pg. 9

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3
Q

7 what is not true about the periodic table?

A

Rare earth elements are in the first column in the left

Nb Pg. 9

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4
Q

18 an atom is electrically neutral because..

A

The number of protons and electrons are equal

NB pg. 10

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5
Q

26 an unstable nucleus results from too many or too little..

A

Neutrons

Nb Pg. 9

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6
Q

30 the atomic number of magnesium is 12. Therefore it must have..

A

12 protons and no electrons.

NB pg. 10

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7
Q

31 When looking at the halogens on the periodic table, how does the number of valence electrons change as the energy level is decreased?

A

The total number of valence electrons does not change. It remains at 7

Nb Pg. 9

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8
Q

36 how many valence electrons does group 18 have?

A

8

NB pg. 10

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9
Q

37 Who said electrons travel in fixed orbits?

A

Niehls Bohr

NB pg. 3

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10
Q

39 who made the electron cloud model

A

Schrodinger and Heisenberg

NB pg. 3

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11
Q

40 named the atom based in the Greek word meaning indivisible

A

Democritus

NB pg. 3

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12
Q

41 arranged the elements on the periodic table based on atomic number

A

Henry Mosley

NB pg. 3

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13
Q
  1. Arranged elements in the periodic table based on atomic mass
A

Dmitri Mendeleev

NB pg. 3

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14
Q

43 who made the nuclear model

A

Ernest Rutherford

NB pg. 3

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15
Q

49 what is the 3 most reactive nonmetal is group 2?

A

F,Cl,I,At

NB pg. 10

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16
Q

What is carbon with 7 neutrons in hyphen form, nuclear form, and is it the most common form?

A

Nuclear : 13c
Hyphen : Carbon- 13
No because the mass on the periodic table is 12.011 and is weighted average.

NB pg. 10

17
Q

54 what is the difference and similarity between Calcium - 42 10be

A

Same # of valence electrons = grown difference = # of energy = different group

NB pg. 10

18
Q

What is the property of nonmetals?

A

Solid

Nb pg. 8

2nd Jordan_Luke PS (9 decks)

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