Fluorine 9 F 18.998 Iron 26 Fe 55.845 # Protons: # Electrons: # Neutrons: 10 # Protons: # Electrons: Let's Practice!! # Neutrons: Boron 5 B 10.811 Sodium 11 Na 22.990 # Protons: # Electrons: # Neutrons: # Protons: # Electrons: # Neutrons: I

Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter5: Nomenclature
Section: Chapter Questions
Problem 98CP
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any thing! Ouch! In order for the charges to cancel out, the number of Proton
Positive
have a
charge) has to be equal to the number of
(which have a
charge.)
What information about atoms can be found on the periodic table?
Each element's
on the periodic table shows
numbers. The Atomic
us how many
64
C-
12.0114
#
Fluorine
9
F
18.998
Since the number of protons and electrons are always
number also tells us the number of electrons.
Iron
26
Fe
55.845
number is the element's
the atom has. The
of the two numbers in an element's square is called the Atomic Mass
This tells us how many
(Remember that
atom's total mass!)
Symbol
+
Number of
Neutrons
# Protons: Q
# Electrons:
= #
# Neutrons:
an atom of the element has in its
# Protons:
Atomic number (Number of protons/ Number of electrons)
number of atomic atomic
neutrons mass number
(5)
# Electrons:
# Neutrons:
+
Number of
Protons
=
are in an atom's nucleus.
are so small that they don't really add anything to the
=
Let's Practice!!
Mass
Number
Boron
5
B
10.811
very important
Sodium
11
Na
22.990
the atomic
boron
10.811
# Protons:
# Electrons:
(which
# Neutrons:
# Protons:
and tells
# Electrons:
# Neutrons:
Transcribed Image Text:any thing! Ouch! In order for the charges to cancel out, the number of Proton Positive have a charge) has to be equal to the number of (which have a charge.) What information about atoms can be found on the periodic table? Each element's on the periodic table shows numbers. The Atomic us how many 64 C- 12.0114 # Fluorine 9 F 18.998 Since the number of protons and electrons are always number also tells us the number of electrons. Iron 26 Fe 55.845 number is the element's the atom has. The of the two numbers in an element's square is called the Atomic Mass This tells us how many (Remember that atom's total mass!) Symbol + Number of Neutrons # Protons: Q # Electrons: = # # Neutrons: an atom of the element has in its # Protons: Atomic number (Number of protons/ Number of electrons) number of atomic atomic neutrons mass number (5) # Electrons: # Neutrons: + Number of Protons = are in an atom's nucleus. are so small that they don't really add anything to the = Let's Practice!! Mass Number Boron 5 B 10.811 very important Sodium 11 Na 22.990 the atomic boron 10.811 # Protons: # Electrons: (which # Neutrons: # Protons: and tells # Electrons: # Neutrons:
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