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Middle School Chemistry Flashcards | StudBud
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Middle School Chemistry
Middle School Chemistry
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Chemistry review of the periodical table of elements for Middle school students.
Flashcards
21 cards
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Questions
21
Answers
1
How many protons does Thallium have?
204
123
48
81
2
What equipment allows you to measure volume of liquids the best?
graduated cylinder
flask
beaker
measuring cup
3
How many protons does Helium have?
1
1.5
4
2
4
The element Na is?
Natrium
Nacium
Natrite
Sodium
5
The atomic mass number is determined by the mass of ?
electrons and protons together
protons and neutrons together
protons
neutrons
6
Which lab equipment allows you to measure mass correctly?
electronic balance
spring scale
triple beam balance
foot balance
7
Isotopes are defined as?
identical elements with extra protons then common element.
Identical elements with extra neutrons then common element.
Identical element with extra electrons then common element.
identical elements with less neutrons then common element.
8
The element Ca is
Calcite
caltite
calcium
calum
9
When atoms arrange in exact patterns and build element to element ?
compounds
elements
lattice structure
crystals
10
The most abundant two elements in planet Earth are?
Oxygen and Iron
Iron and Nickel
Oxygen and Silicon
Aluminum and Silicon
11
The most common two elements in the human body are?
hydrogen and oxygen
oxygen and calcium
carbon and oxygen
nitrogen and oxygen
12
Identical atoms chemically bonded together are called?
elements
atoms
molecules
compounds
13
How many neutrons does arsenic have?
33
75
42
27
14
How many electrons does Zirconium have?
51
89
40
91
15
Which sub-atomic particles are located in the nucleus of an atom?
protons and nuetrons
only protons
leptons and protons
electrons and protons
16
The atomic number tells you the amount of ____ inside the atom?
neutrons
protons
electons
protons and electrons
17
The building block of all matter in the Universe is the
element
molecule
atom
cell
18
The little number written after an element symbol in a chemical formula is called a?
subscript
scribe number
coefficient
little number
19
The four states of matter are?
gases, liquids, solids, plastics
Plasma, solids, liquids, gases
liquids, gases, solids, pixels
Plasma, solids, liquids, cells
20
How many electrons does silicon have?
15
28
13
14
21
The large numbers written in front of element symbols are called?
subscripts
conglonmerates
Coefficients
constants
