Each atom of carbon has the same number of ______________.
Each atom of carbon has the same number of protons.
100
The periodic table is a categorized list of all the _________ in the universe.
The periodic table is a categorized list of all the elements in the universe.
100
What are the 3 major categories of elements in the periodic table?
Metals, non-metals, and metalloids
100
A proton has a ________ charge
A proton has a positive charge
100
What is the symbol for Carbon?
C
200
The atomic number is the number of _____________.
The atomic number is the number of protons.
200
Elements in the same row of the periodic table are said to be in the same ___________.
Elements in the same row of the periodic table are said to be in the same period.
200
Of metals, non-metals, and metalloids, which are the most abundant in the periodic table?
Metals
200
An electron has a __________ charge
An electron has a negative charge
200
What element are cans made out of?
Aluminum
300
The atomic mass is the number of ________ plus the number of __________. This is because ________ don't have any mass.
The atomic mass is the number of protons plus the number of neutrons. This is because electrons don't have any mass.
300
Elements that are in the same vertical column are in the same _____________.
Elements that are in the same vertical column are in the same group or family.
300
If an unknown element has a high luster, is malleable, ductile, and a good conductor of heat and electricity, it is most likely as
a) metal
b) non-metal
c) metalloid
Metal
300
A neutron has a ___________ charge
A neutron has a neutral charge
300
What element do you breathe everyday?
Oxygen
400
How many neutrons and in an element if the atomic mass is 11, and there are 5 protons?
6 neutrons
400
Elements in the periodic table are arranged from left to right in order of increasing _______________.
Elements in the periodic table are arranged from left to right in order of increasing atomic number or atomic mass.
400
If an unknown element in the periodic table is somewhat good at conducting electricity and is used in a smart phone, it is most likely a
a) metal
b) non-metal
c) metalloid
Metalloid
400
What subatomic particles are found in the nucleus of an atom?
Protons and Neutrons
400
An object is brittle. What does that mean?
The object can break easily.
500
If an element has an atomic mass of 40 and and atomic number of 20, how many protons and neutrons are in the atom?
20 protons and 20 neutrons
500
An element will be most similar to elements in it's
a)period b)family or group
An element will be most similar to elements in it's
family or group
500
If an unknown element is brittle, cannot be hammered flat, and does not conduct electricity well
a) metal
b) non-metal
c) metalloid
Non-metal
500
If an atom has an overall charge of 0 and 16 protons, how many electrons are there?
6 electrons
500
An object is malleable. What does that mean?
If an object in malleable, it can be bent or hammered flat