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Valence Electrons
Quiz 2
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Q.1
What electron configuration matches an oxygen atom?
1s22s22p63s2, 3p64s23d104p5
1s22s22p4
1s22s22p6
1s22s22p63s23p64s23d1
Q.2
What groups are the most reactive non metals?
1 and 2
16 and 17
2 and 17
1 and 16
Q.3
All atoms are most stable with (or would "prefer") how many electrons in their valence shell?
1
2
8
18
Q.4
How many valence electrons are found in atoms of group 1?
7
6
4
1
Q.5
How do electrons of an element determine that element's reactivity?
If the valence shell has missing electrons it is very reactive to attract or lose more electrons.
If the valence shell has a full ring of electrons it is very reactive because it needs more.
If the valence shell has a full shell of electrons it is very reactive because it is already full.
If the valence shell has missing electrons it is not reactive because it is missing electrons.
Q.6
The elements in this group all have 5 valance electrons.
Group 5
Group 15
Group 3
Group 18
Q.7
What atom matches this electron configuration?1s22s22p63s23p64s23d10
Zinc
Copper
Nickel
Germanium
Q.8
Valence electrons are located...
inside the nucleus
in outer space
on the outermost orbit of an atom
Q.9
Valence electrons are:
Electrons farthest away from the nucleus
Electrons closest to the nucleus
Electrons that just come and go - they don't stay with the atom
Electrons in the second shell
Q.10
When trying to identify an unknown element, a scientist determines what other elements reacts with chemically. Which property of the unknown element determines the other element it reacts with?
The total number of neutrons in the unknown element
The total number of particles in the nucleus of the unknown element
The number of protons in the nucleus of the unknown element
The number of valence electrons in the unknown element
Q.11
When electrons are found in higher energy levels, further from the nucleus and are unstable we say that these electrons are in...
the ground state
the excited state
the valence state
the neutral state
Q.12
TRUE or FALSE: LEDS is use to emphasize the electron configuration of an element
true
false
Q.13
The octet rule tells us that atoms are "happy" or stable when...
they have 8 neutrons in the nucleus
they have 18 neutrons in the nucleus
they have 8 electrons in their outer most orbital
they have 18 electrons in their outer most orbital
Q.14
When electrons are found in lower energy levels and are in a stable orientation we say that these electrons are in...
the ground state
the excited state
the valence state
the neutral state
Q.15
The period that an element is in, tells you what?
Number of protons
Number of electrons
Number of valence electrons
Number of shells
Q.16
Valence Electrons are organized into .......
Periods
Groups
Q.17
Elements are organized by REACTIVITY into.....
Periods
Groups
Q.18
Families on the Periodic table are organized into .....
Periods
Groups
Q.19
Rows on the period table are called _____ while columns are called _____.
groups, families
groups, periods
periods, groups
families, groups
Q.20
Energy Levels best describe .....
Periods
Groups
0 h : 0 m : 1 s
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