Download Trends in the Periodic Table

Name: _________________________________ Period: ____ Date: ___ / ___ / ___
Atomic Dimensions #5
Use the following table to answer questions 1 - 8.
Element
Hydrogen
Helium
Beryllium
Oxygen
Magnesium
Argon
Symbol
H
He
Be
O
Mg
Ar
Atomic Number
1
2
4
8
12
18
1. __________________ An atom of this element has 1 proton and 1 electron
2. __________________ An atom of this element has 8 protons
3. __________________ An atom of this element has 10 more protons than an atom of oxygen
4. __________________ This element has an atomic number of 12
5. __________________ An atom of this element contains twice as many protons as helium
6. __________________ An atom of this element has 12 electrons
7. __________________ An atom of this element has 4 more electrons than beryllium
8. __________________ An atom of this element has twice as many electrons as hydrogen
In each of the following statements, you are given a pair of elements and
important information about each element. Use this information to determine if
the pair of elements are isotopes or different elements. Indicate your answer on
the line provided by writing “isotopes” or “different elements”.
9. Element D has 6 protons and 7 neutrons.
Element F has 7 protons and 7 neutrons.
10. Element J has 27 protons and 32 neutrons.
Element L has 27 protons and 33 neutrons.
11. Element X has 17 protons and 18 neutrons.
Element Y has 18 protons and 17 neutrons.
12. Element Q has 56 protons and 81 neutrons.
Element R has 56 protons and 82 neutrons.
13. Element W has 8 protons and 8 neutrons.
Element V has 7 protons and 8 neutrons.
Name: _________________________________ Period: ____ Date: ___ / ___ / ___
Atomic Dimensions #6
The table below contains information about several elements. Use this table to review
the concepts of atomic number, mass number, numbers of subatomic particles
(protons, neutrons, and electrons), isotopes, and charged and uncharged atoms. In
each case, enough information has been provided for you to fill in all of the blanks.
For the far right column, if an atom has a charge, label it with the appropriate sign and
number (ex. +1 ion). If an atom is neutral, check your periodic table. If the atom listed
is not the most common isotope, write “Isotope” in the blank. If the atom is the most
common isotope, write “Neutral Atom” in the blank.
The first three have been completed for you as examples
Number
of
Neutrons
Number
of
Electrons
Isotope,
Ion or
Neutral
Atom
Element
Symbol
Atomic
Number
Mass
Number
Number
of
Protons
Xenon
Xe
54
134
54
80
54
Isotope
Magnesium
Mg+2
12
24
12
12
10
+2 ion
Carbon
C
6
12
6
6
6
Neutral
Atom
Aluminum
Al
27
13
Bromine
35
80
13
45
36
146
92
Uranium
U
92
Helium
He
2
4
2
Helium
He
2
5
2
3
7
2
74
184
73
Lithium
Tungsten
W
C
Nitrogen
Silver
14
7
6
8
14
108
47
47