Periodic Table
True/ False
The Periodic Table of Elements is arrange alphabetically?
False
True/ False
An atom with a different number of electrons and protons is called an ion.
True
The state of matter, such as whether it is a solid, liquid or gas, and the color, texture, and shine of a substance are all _______________ properties.
physical
True/ False
Elements that are located near each other in the Periodic Table are likely to have similar physical and chemical properties
True
Lithium is an element that displays both chemical and physical properties. What is the smallest possible particle that will have all the physical and chemical properties of this element?
a lithium atom
If an element or compound reacts to HCL acid or acetic acid, it is showing a ___________ property.
Chemical
An element with an atomic number of 76 will have 76 _____________ and _______________.
protons, electrons
In order to determine how many neutrons are in one atom of an element, we subtract the element's atomic number from its ___________.
Atomic Mass
In general, metals are likely to conduct electricity more effectively than metalloids and non metals. This is an example of a __________ property.
Physical
As you look at the periodic table, you will notice that the nonmetals are grouped together on the ________side of the table.
Right
A substance that cannot be broken down into smaller components through chemical reactions is called a(n) ___________________.
Silicon has some metallic luster to it and conducts electricity, but does not react to acid. Based on these properties, it is probably a __________-.
Metalloid
The rows in the periodic table are called the ____________.
periods
Metallic atoms with very active, excitable electrons are found to be able to ____________.
conduct electricity or make electrical current
Three signs of chemical reactivity are:
1.)
2.)
3.)
1.) release of gass/bubbles
2.) temp change
3.) Oxidation
4.) color change
5.) Combustion