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(Phy) Atoms and the Periodic Table Flashcards | StudBud
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(Phy) Atoms and the Periodic Table
(Phy) Atoms and the Periodic Table
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Periodic table, periods, properties of families
Flashcards
22 cards
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Practice quiz
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Questions
22
Answers
1
The ease or speed of an element to combine or react with another substance
luster
electrical conductivity
reactivity
corrosion
2
In an atom, the number of protons equals the number of
protons
electrons
nuclei
neutrons
3
How many elements are in the compound NaHCO
3
?
6
5
10
4
4
Which is an example of a chemical change?
tearing paper
breaking a glass
freezing water
burning a hamburger
5
What process would determine the number of neutrons in an element?
Divide the atomic mass into the atomic number.
Subtract the atomic number from the atomic mass.
Multiply the atomic mass by the atomic number.
Add the atomic mass to the atomic number.
6
Which of the following would NOT be an indication that a chemical change was occurring?
release of heat
odor
bubbling
increased density
7
From an element's location (the colored areas) in the periodic table, you can predict
when it was discovered.
its chemical symbol.
its properties.
its chemical name.
8
The modern Periodic Table of Elements is placed in order by
atomic number
number of neutrons
date of discovery
reactivity with hydrogen
9
How many atoms does this compound have? C
6
H
12
O
6
3
20
6
24
10
The nucleus of an atom consists of?
neutrons
protons, neutrons and electrons
electrons
protons and neutrons
11
Which statement best describes subatomic particles?
A neutron is negative & its mass smaller than a proton.
An electron is negative with a larger mass than a proton.
A proton is positive with a smaller mass of an electron.
A neutron is neutral with a mass larger than an electron
12
The number of _______ an element has makes it unique and different from every other element.
protons
moles
neutrons
electrons
13
Electrons are found:
Outside of the nucleus
inside the nucleus
Half inside the nucleus and half outside the nucleus
attached to the outside of the atom
14
On the periodic table, a column of elements is called a
family
isotope
valence
period
15
The number of protons and neutrons added together
Group or family
number of electrons
atomic number
atomic mass
16
Which particles in atoms have a negative charge?
protons
electrons
nuclei
neutrons
17
The smallest particle that can still be considered an element is called a(n)
atom
nucleus
charge
proton
18
Which group contains the most elements?
gases
metals
metalloids
nonmetals
19
D. Mendeleev developed the periodic table and placed the elements in order by
the number of neutrons
atomic number
atomic mass
the number of nuclei
20
Which of the following is an example of a molecule (or compound)?
H20
K
Au
C
21
A material is said to be ductile if it
can be pulled out, or drawn, into a long wire.
can be hammered or rolled into flat sheets and other shapes.
is a mixture of a metal with at least one other element.
can transfer heat or electricity to another material.
22
How many hydrogens are in the following compound NH
4
OH?
2
idk
5
10
