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4.1 - Atoms, Bonding, and the Periodic Table Flashcards | StudBud
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4.1 - Atoms, Bonding, and the Periodic Table
4.1 - Atoms, Bonding, and the Periodic Table
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1
How many valence electrons does Aluminum have?
5
8
13
3
2
Both Helium and Krypton are in group 18. Is their Lewis Dot diagram correct?
Yes, both have correct diagrams
No, both do NOT have correct diagrams
Diagram for He is correct, but for Kr it is NOT
Diagram for He is NOT correct, but for Kr it is correct
3
How many extra electrons does Fluorine need to be considered stable?
8
1
3
7
4
How many valence electrons does Hydrogen have?
1
6
8
2
5
Atoms tend to be stable and nonreactive if they have SIX valence electrons.
True
False
6
A(n) ____________ shows the number of valence electrons in an atom by drawing a picture.
Electron Dot Structure
The nucleus
Periodic Table
7
How many valence electrons can fit in the first shell?
7
2
8
1
8
Argon is in group 18. Which Lewis Dot structure for Argon is correct?
d
a
c
b
9
A(n) ___________ shows the number of valence electrons in an atom in pictorial fashion.
chemical bond
electron dot diagram
10
In the periodic table, the number of valence electrons in each element ___________ from left to right across each period
Decreases
Stays the same
Increases
11
The number of ________________ in the atom of an element determines its chemical properties.
Valence Electrons
Atomic Number
Neutrons
Protons
12
A completely stable atom has how many electrons?
3 or 9
2 or 8
1 or 7
None of the above
13
The reactivity of a metal depends on how easily it LOSES its valence electrons.
False
True
It depends
Never
14
How many extra electrons does Oxygen need to be considered stable?
6
2
1
8
15
Why are valence electrons important?
They are a physical property
They help determine the reactivity of an element
They are fun
They tell us how many total electrons an atom have
16
MOST
atoms tend to be stable and nonreactive if they have _________ valence electrons.
2
4
8
6
17
What are valence electrons?
Electrons in the nucleus
They do not exist
Total number of electrons in an atom
Electrons on the outer most shell of an electron
18
An element that has a
FULL
shell of valence electrons is called
A halogen
A nonmetal
A noble gas
A metal
19
Based on the Lewis Dot diagram, in which group is Chlorine located?
17
1
18
7
20
How do we know the number of valence electrons?
By looking at the atomic mass
By guessing
By looking at the group numbers on the periodic table
By adding them in our head
