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