Pre-Test
P.Table
Subatomic
Numbers
Misc.
100
This is the smallest part of an element.
What is an atom?
100
Columns of elements are called....
groups or families
100
Three subatomic particles.
What are protons, neutrons, and electrons?
100
The sum of protons and neutrons in the nucleus of an atom.
What is mass number?
100
What are 3 characteristics of metals?
luster, good conductors of heat, ductile, malleable
200
Neutrons are located outside of the nucleus. True or False?
False!
200
The periodic table can be divided into 3 categories....what are they?
metals, non-metals, metalloids
200
Located outside of the nucleus and have a negative charge.
What are electrons?
200
The number of protons in an atom of a certain element is the same as...
the atomic number
200
What are 3 characteristics of non-metals?
poor conductors of heat, not ductile nor malleable, brittle, dull
300
Electrons are located outside of the nucleus. True or False?
True!
300
All elements have their own unique ____ that consists of one or two letters
symbol
300
Located inside of the nucleus and have a positive charge.
What are protons?
300
The atomic number of Oxygen.
What is 8?
300
The 7 horizontal rows of the periodic table are called..
periods
400
Protons and neutrons are about the same size. True or False?
True!
400
The periodic table is organized according to their....
atomic number
400
Atoms of different elements have different numbers of these.
What are protons?
400
The mass number of Potassium.
39.10
400
an explosion took place in the universe billions of years ago called .....
the Big Bang
500
This is the smallest subatomic particle.
What is an electron?
500
An atom that is neither positively or negatively charged.
neutral
500
An atom with the same number of protons but different number of neutrons.
What is an isotope?
500
Mass number - atomic number = ______ __ ________.
number of neutrons
500
Draw a box that includes the following information for Calcium
-atomic number, mass #, Symbol, elemental name
