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Introduction to Atoms & The Periodic Table Flashcards | StudBud
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Introduction to Atoms & The Periodic Table
Introduction to Atoms & The Periodic Table
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Flashcards
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Questions
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Answers
1
Most metals are not ...
good conductors of heat & electricity
ductile
liquid at room temperature
malleable
2
Since atoms are so small ...?
there is no way to describe them
scientists create models to describe them
they cannot by synthesized by scientists
they cannot be made of smaller particles
3
Mendeleev created the first periodic table by arranging elements in order of...
decreasing atomic mass
increasing atomic number
increasing atomic mass
increasing melting points and densities
4
What 2 particles are found in the nucleus?
protons & neutrons
neutrons & electrons
protons & electrons
electrons & nucleus
5
Which particles in atoms have a negative electric charge?
neutrons
protons
nuclei
electrons
6
What part of the atom has the least amount of mass?
cloud of electrons
element
nucleus
protons & neutrons
7
How do you find the mass number?
protons - neutrons
protons + electrons
protons - electrons
protons + neutrons
8
What particles have a positive charge?
protons
isotopes
neutrons
electrons
9
What part of the atom has the most mass?
perimeter
isotopes
cloud of electrons
nucleus
10
In an atom, the number of protons equals the number of ...
electrons
neutrons
nuclei
isotopes
11
At room temperature, more than half the nonmetal elements are ...?
gases
alloys
solids
liquids
12
The atomic number of an element is based on the ...
number of neutrons in its nucleus
number of protons in its nucleus
number of its electrons around its core
mass of its nucleus
13
Which group of elements share characteristics with both metals and nonmetals?
salts
alloys
halogens
metalloids
14
The elements in a column of the periodic table ...
have the same atomic mass
have similar properties
are in the same period
have very similar chemical symbols
15
The elements in a row of the periodic table...
have the same average atomic mass
are in the same family
have properties that change in a pattern
have the same or nearly the same properties
16
Which parts of an atom move around the nucleus?
electrons
neutrons
protons
atomic mass units
17
Which group contains the most elements?
metals
transition elements
nonmetals
metalloids
18
If you are given the number of electrons, you will know the number of ...
neutrons
protons
isotopes
nucleus
19
What information in the periodic table indicates the number of protons in an atom?
the element's chemical symbol
the element's atomic number
the position of an element in its column
the element's atomic mass
20
What part of the atom has the most volume?
nucleus
the center core of an atom
cloud of electrons
the atom
21
Which of these statements about a column of the periodic table is true?
elements have the same atomic number
elements have wide range of properties
elements have the same atomic mass
elements have similar properties
22
A material is said to be ductile if it ...
is a mixture of a metal with at least one other element
can be pulled out, or drawn, into a long wire
can transfer heat or electricity to another material
can be hammered or rolled into flat sheets & other shapes
23
What particles are neutral (have no charge)?
neutrons
protons
electrons
nucleus
