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The atom Flashcards | StudBud
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The atom
The atom
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#Chemistry- #revision on atom and periodic table
Flashcards
15 cards
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Questions
15
Answers
1
You will find metals on the far right column of the periodic table.
False
True
2
which of this chioces is not a major part of atom?
Neutrons
All they are parts of an atom
Protons
Electrons
3
What is the difference between Carbon-12 and Carbon-14?
The atomic number
Nothing
The number of electrons
The Mass
4
The rows of the periodic table are called periods.
True
False
5
According to the diagram, Chlorine has:
17 protons and 18 electrons
17 protons and 16 electrons
36 neutrons
atomic number 36
6
Elements in the periodic table are arranged by...
Chemical Reactivity
Atomic Number
Atomic Mass
Number of Neutrons
7
If an element has Atomic Number 13 and Atomic Mass 20, it has:
13 protons and electrons and 7 neutrons
20 protons and neutrons and 7 electrons
13 protons and electrons and 9 neutrons
20 protons and electrons and 13 Neutrons
8
The innermost atomic orbital can hold a maximum of 18 electrons.
False
True
9
Rutherford's alpha particle scattering experiment established that:
protons are not evenly distributed throughout an atom.
electrons have a negative charge.
atoms are made of protons, neutrons, and electrons.
electrons have a positive charge
10
Electrons in an atom
are positively charged
Have atomic mass 1 amu
Are in the nucleus with neutrons
Are organized in shells around the nucleus
11
An isotope is a form of an atom with different...
Neutrons
All of the mentioned
Protons
Electrons
12
Which of the following is NOT a metal's characteristic?
they are thermal insulators
They are good conductors of electricity
They are usually hard and dense
they are malleable
13
An elecron has a mass that is much less than a proton
False
True
14
an ion is a form of an atom with a different number of
electrons
neutrons
protons
all the mentioned
15
Elements into same group have:
Same number of neutrons
same outer shell configuration
Same number of electrons
Same number of shells
