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Atoms, Compounds and Chemical Bonding Flashcards | StudBud
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Atoms, Compounds and Chemical Bonding
Atoms, Compounds and Chemical Bonding
20 terms
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StudBud Administration
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1,062 plays
Covalent Bonding, atoms, chemical formulas, periodic table
Flashcards
20 cards
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Questions
20
Answers
1
Valence electrons are...
electrons in the highest energy level
All of the above
electrons involved in chemical bonding
electrons in the outermost energy level
2
Sodium Chloride (NaCl) is a molecule.
True
False
3
Atoms react to become ____ !
a group!
active!
mixed!
stable!
4
In a covalent bonds, valence electrons are gained/lost, and they are shared in an ionic bond.
False
True
5
The compound NaHCO
3
contains the elements:
Sodium, carbon, hydrogen
Sodium, hydrogen, oxygen
Sodium, Hydrogen, Carbon, Oxygen
Sodium, Hydrogen, Cobalt
6
This is the chemical formula for sodium sulfate. How many sulfurs are there in sodium sulfate?
2
4
0
1
7
Polar substances dissolve easily in non-polar substances
Maybe
False
True
8
Covalent bonds form between a ___ & ___, and ionic bonds form between a ___ & ___.
nonmetal &metal, nonmetal & nonmetal
nonmetal & nonmetal, metal & nonmetal
9
Nonpolar molecules share electrons ____, and polar molecules share electrons ____.
unequally, equally
the same
equally, unequally
10
Polar molecules have a slight positive end and slight negative end.
True
Maybe
False
11
A column on the periodic table is called ____, and a row on the periodic table is called ____.
period, family
group, period
period, group
family, group
12
In an atom, the nucleus contains____, while the energy levels hold ____.
protons & electrons, neutrons
neutrons & protons, electrons
protons, electrons & neutrons
electrons & neutrons, protons
13
Nitrogen is in group 15 so it has ___valence electrons, and can form ___ bonds
5, 5
5, 1
5, 3
3, 5
14
Which of the following are properties of covalent compounds?
low melting & boiling points, good conductors of electricity
high melting &boiling points, poor conductors of electricity
low melting & boiling points, poor conductors of electricity
15
This image shows...
Double bonds
A triple bond
Single bonds
16
All elements on the periodic table are reactive, except for group ___ which has ___ valence e.
18, 8
1, 7
18, 1
16, 6
17
When atoms form compounds the properties of compound are the same as properties of single atoms
False
True
18
An electron dot diagram displays..
How many electrons an element has
All of the above
A symbol, and dots representing valence electrons
The number of protons present in an element
19
A molecule contains...
ionic bonds
electronic bonds
covalent bonds
20
the compound Aluminum Chloride (AlCl
3
) contains:
ionic bonds
covalent bonds
