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WorksheetsThe Periodic Table
Total questions: 20
Worksheet time: 16mins
Particles in an atom's nucleus that are neutral and have no charge are
megatrons.
electrons.
neutrons.
protons.
morons
The horizontal (left to right) rows on the periodic table are known as
periods.
sentences,
groups or families.
valence electrons.
One physical characteristic of metals is...
Luster (shine)
Poor conductors
All are gases.
All are brittle.
_________are NOT good conductors of heat or electricity.
Metals
Metalloids
Nonmetals
The first group of the periodic table is the _______group.
Alkali metals
Alkaline earth metals
Lanthanides
Halogens
How many protons do atoms of Nitrogen have?
14
7
21
7.0035
What is the atomic mass of Flourine?
9
18.9984
28
19
What is the chemical formula for culinary salt?
Na
So
NaCl
MgCl2
How many protons are in an atom of Potassium?
7
19
39.098
20
How many neutrons are usually found in an atom of Hydrogen?
1
2
0
1.00794
If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom?
12 neutrons
12 electrons
12 protons
24 protons and neutrons
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
10
20
30
Most of the volume in an atom is found in the
electrons
nucleus
protons
electron cloud
Each group in the Periodic Table of Elements have the same
number of energy levels
atomic number
number of valence electrons
number of isotopes
Being able to shape into wires means?
malleable
ductile
dense
brittle
A highly reactive group, dangerous in elemental form, and forms salts; needs only 1 e- to complete an electron octet.
alkali metals
alkaline Earth metals
noble gases
halogens
