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Periodic Table etc quiz Flashcards | StudBud
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Periodic Table etc quiz
Periodic Table etc quiz
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1
Calculate the energy of an EM wave with a wavelength of 2.6 x 10
-8
m.
7.65 x 10-18 J
5.68 x 10-22 J
2.1 x 10-12 J
1.72 x 10-41 J
2
As you go across a period, ionization energy _________, so it's _________ to remove electrons.
increases; easier
decreases; easier
increases; harder
decreases; harder
3
Non-metals tend to...
lose electrons and become anions
gain electrons and become cations
gain electrons and become anions
lose electrons and become cations
4
What is the noble gas configuration for Ca?
[Ar]3s2
[Kr]3s2
[Ar]4s<font size="2">2</font>
[Kr]4s2
5
When an element gains electrons, it forms an ion called a(n) ______ and its atomic radius _____
anion; increases
anion; decreases
cation; increases
cation; decreases
6
What was so significant about Mendeleev's table and his predictions?
It showed that the table was in order of increasing atomic #
It showed that all the atoms really do exist
Russians are good at chemistry
It showed that you could know properties of unknown atoms
7
Which electron configuration corresponds to the Lewis dot structure for element "X" below?
1s22s22p3
1s22s23p5
1s22s22p63s23p1
1s22s22p63s1
8
Which of the following statements best describes how light is produced?
All light is reflected from the sun
Things get hot so they glow, which gives off light.
An electron gets excited and jumps up to a higher state
An electron releases a photon as it returns to ground state
9
An element is in the most reactive group (metals) and form soft metals, which element is it?
Sr
Cl
B
Rb
10
What is the correct electron configuration for Na?
1s22s22p<font size="2">5</font>
1s22s22p63s2
1s22s22p63s1
1s22s22p1
11
Which element is being represented by the electron orbital diagram below?
B
Al
Zn
Ga
12
Going down a group, electronegativity __________ because ___________.
increases; they have a larger atomic radius
decreases; they have a larger atomic radius
increases; they have a larger nuclear charge
decreases; the extra energy levels 'shield' the atom
13
According to the EM spectrum below, which of the following is true about radio waves?
radio waves have long wavelength, low freq. & high energy
radio waves have short wavelength, high freq. & high energy
radio waves have long wavelength, low freq. & low energy
radio waves have short wavelength, low freq. & low energy
14
Which of the following give the correct trend for ionization energy? (< is 'less than')
Cl < Br < I
Sc < Sr < Cs
P < Si < Al
Cs < Rb < Na
15
Which list of elements below all have similar chemical properties?
N, S, Br
K, Ca, Sc
C, Si, Ge
Co, Pb, Bi
16
Which element below is the LARGEST?
Rn
Cs
Fr
Ga
17
This atom will consistently form +3 cations
O
Ca
In
Si
