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CH The Periodic Table 19 Flashcards | StudBud
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CH The Periodic Table 19
CH The Periodic Table 19
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Periodic Table #chemistry #highschool #mendeleev #periodictable
Flashcards
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Questions
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Answers
1
Which element of these in Group 17 is the most active nonmetal?
Br
Cl
I
At
2
Which halogens are gases at room temperature and pressure (hint =see this PT)?
Cl and Br
I and Br
Cl and F
I and F
3
How is the periodic table organized?
Periods are vertical and groups are horizontal
Periods are horizontal and groups are vertical
Periods and groups are vertical
Periods and groups are horizontal
4
Which of these would have a larger radius?
Neither, both are the same
F 1-
IDK
F
5
According to the PT, which of the following elements (from Period 4) has the smallest radius?
Nickel, Ni, #28
Cobalt, Co, #27
Potassium, K, #19
Calcium, Ca, #20
6
Which elements have the most similar chemical properties (reactivity)?
K, #19 and Na, #11
K, #19 and Ca, #20
K, #19 and S, #16
K, #19 and Cl, #17
7
Which element is the largest? (these are on same period)
Copper, Cu, #29
Potassium, K, #19
Krypton, Kr, #36
Arsenic, As, #33
8
A Russian chemist who is given credit for first arranging elements in a usable manner
Rutherford
Moseley
Dalton
Mendeleev
9
Which of these metals loses electrons most readily?
Magnesium, #12
Potassium, #19
Sodium, #11
Calcium, #20
10
Potassium, K, #19 has ___ valence electrons.
19
8
1
4
11
The elements Ca, #20 and Sr, #38 have similar chemical properties because they both have the same
number of valence electrons
atomic number
number of completely filled subshells
mass number
12
Using the periodic table, which of these is the most electronegative?
Chlorine, Cl, #17
Iron, Fe, #26
Barium, Ba, #56
Aluminum, Al, #13
13
Which element is malleable and ductile?
N, #7
S, #16
Si, #14
Au, #79
14
Period number for Mercury, Hg, #80.
5
2B
3
6
15
Which are most common in nonmetals like Fluorine, F, #19?
low ionization energy and low electronegativity
high ionization energy and low electronegativity
high ionization energy and high electronegativity
low ionization energy and high electronegativity
16
At which location in the periodic table would the most active (reactive) NON-METAL element be found?
in Group 1 at the bottom
in Group 1 at the top
in Group 17 at the top
in Group 17 at the bottom
17
At which location in the periodic table would the most active (reactive) METAL element be found?
in Group 1 at the bottom
in Group 17 at the top
in Group 17 at the bottom
in Group 1 at the top
18
A Mg atom differs from a Mg+2 ion in that the neutral atom has a....
smaller radius
smaller nucleus
larger nucleus
larger radius
19
How many neutrons does Copper, Cu, #29, have?
64
35
29
34
20
English scientist who used x-rays to identify atomic number and rearrange the Periodic Table
Rutherford
Mendeleev
Moseley
Dalton
21
Elements that have properties of both metals and nonmetals
Noble Gases
Metalloids
Transitions
Gases
22
Which of these would have a larger radius??
IDK
neither, both are the same
K
K +1
23
The group that an element is found in determines an elements...
number of valence electrons
electron energy levels
nuclear charge
radioactivity
24
Atoms of metals tend to
lose electrons and form positive ions
lose electrons and form negative ions
gain electrons and form negative ions
gain electrons and form positive ions
25
Which element is the largest (these are in same group)?
Sodium, Na, #11
Francium, Fr, #87
Hydrogen, H, #1
Potassium, K, #19
26
An atom of which element in the ground state has a complete outermost energy level?
Be, #4
He, #2
Hg, #80
H, #1
