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Chemistry - Chapter : Fundamentals of Chemistry 2 Flashcards | StudBud
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Chemistry - Chapter : Fundamentals of Chemistry 2
Chemistry - Chapter : Fundamentals of Chemistry 2
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SHRI CHAITANYA CLASS 8th Test
Flashcards
37 cards
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Practice quiz
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Questions
37
Answers
1
What is the process of joining different types of atoms to form a different substance?
Chemical Formula
Chemical Reaction
Molecule
Alkali
2
What are molecules formed from two or more different elements called?
Compounds
Chemical Reactions
Ions
Alkalis
3
The number of protons plus neutrons is the atom’s approximate what?
Atomic Model
Atomic Number
Atomic Nucleus
Atomic Mass
4
What doe you call the study of
matter
?
Physics
Astronomy
Chemistry
Science
5
How many atoms of carbon are in the compound
H
2
CO
3
?
Three
One
Two
Zero
6
Which part of the atom has a
positive (+)
charge?
Neutron
Proton
Shell
Electron
7
What are atoms that have gained or lost electrons called?
Ions
Compounds
Elements
Molecules
8
Name this part of the atom (Negative)
Proton
Electron
Outer Shell
Inner Shell
9
Which reaction occurs when a compound is
broken down into simpler compounds
?
Replacement
Synthesis
Combustion
Decomposition
10
What is
Co
in the middle?
Atomic Number
Chemical symbol
Element Name
Atomic Mass
11
Name this part of the atom
Outer Shell
Neutron
Nucleus
Proton
12
Atoms bond with other atoms to complete their outer
what
?
Mass
Smells
Shells
Coat
13
The sum of the number of protons and neutrons results in an atom’s approximate what?
Electrons
Atomic Mass
Atomic Number
pH scale
14
Name this part of the atom (Positive)
Inner Shell
Neutron
Proton
Electron
15
What is formed when positively and negatively charged ions attract each other?
Neutron
Indicator
Covalent Bond
Ionic Bond
16
Name this part of the atom
Nucleus
Outer Shell
Neutron
Proton
17
What are substances that has only one kind of atom?
Indicators
Elements
Periods
Protons
18
What is
58.93
at the bottom?
Atomic Number
Element Name
Atomic Mass
Chemical symbol
19
What is
Cobalt
above the Co?
Chemical symbol
Element Name
Atomic Mass
Atomic Number
20
Which scientist developed the periodic table of the elements?
Dmitri Mendeleev
Niels Bohr
Ernest Rutherford
Robert Boyle
21
Name this part of the atom (Neutral)
Neutron
Proton
Nucleus
Outer Shell
22
Which part of the atom has a
negative (-)
charge?
Neutron
Nucleus
Electron
Proton
23
What is it called when symbols and numbers are used to shorten the name of a compound? (Like H
2
O)
Alkali
Molecule
Chemical Reaction
Chemical Formula
24
Which type of bond forms crystals?
Crystalline
Shared
Ionic
Covalent
25
The atomic number is based off the number of
what
in an element?
Electrons
Neutrons
Protons AND Neutrons
Protons
26
What are the the ←
horizontal→
rows on the periodic table of elements called?
Metals
Periods
Groups
Families
27
In what do atoms share electrons?
Element
Ionic Bond
Covalent Bond
Salt
28
Abbreviations for the names of elements are called what?
Chemical Periods
Chemical Symbols
Chemical Families
Chemical Shells
29
What is the tiniest recognizable part of an element called?
Neutron
Electron
Nucleus
Atom
30
What is
27
in the top left?
Element Name
Chemical symbol
Atomic Mass
Atomic Number
31
In a periodic table, the atomic _________ is based on the number of protons in the nucleus
Number
Mass
Element
Salt
32
Dmitri Mendeleev developed the periodic table of the elements, which does what with elements?
Alphabetizes
Weighs
Classifies
Measures
33
Name this part of the atom
Proton
Neutron
Inner Shell
Electron
34
What is a reaction in which molecules combine to form a new substance?
Ion
Mutual Exchange
Synthesis
Decomposition
35
What are the
↑
vertical
↓
columns of the periodic table called?
Groups
Protons
Periods
Atoms
36
Which scientist developed a simplified model of an atom based on the idea that electrons move in shells?
Dmitri Mendeleev
Ernest Rutherford
Niels Bohr
Robert Boyle
37
What is the center part of an atom?
Neutron
Nucleus
Proton
Electron
