Lesson 1
How are all of the element's symbols alike on the periodic table?
All are abbreviated or shortened, are letters, first letter is capital, or second letter is lowercase (all are appropriate answers).
How are elements arranged in the periodic table?
An __________ is a mixture of two or more metals.
Alloy
The average mass of all of an element's isotopes is its ____________.
Atomic Mass
What is the symbol for Silver?
Ag
How are symbols and abbreviations alike?
They both use letters or they both shorten something.
How do elements in the same family usually react?
They react with other kinds of matter in the same way.
What is the one thing that all nonmetals have in common?
They are not metals.
Gases that are ______ do not react or combine with other elements under ordinary conditions.
Inert
Which element has an atomic mass of 74?
Tungsten
On the periodic table, one or two letters that represent the name of an element is called a what?
a. Element
b. Symbol
c. Abbreviation
b. Symbol
The number on top of the element's symbol is the ______________?
a. atomic number
b. element name
c. atomic mass
a. Atomic Number
Provide 2 properties of metals.
-Most metals can be polished to look shiny.
-The shape of a metal can be changed.
-Electricity and heat travel well through metals.
An element that is usually solid at room temperature, often shiny, and carries heat well is a(n) ________________.
Metal
Which element has an atomic mass of 195.085?
Platinum
True or False: Not all elements are natural. Some elements have been made by scientists in labs around the world.
True.
The ______________ ___________ is an arrangement of elements by increasing atomic number.
Periodic Table
The periodic table groups elements into 3 different categories. What are those 3 categories?
Metals, Nonmetals, and Noble Gases
A(n) _____________does not combine with other materials under ordinary conditions.
Noble Gas
Part 1: Ca is the symbol for which element?
Part 2: What is that element's atomic mass?
Part 1: Calcium
Part 2: 40.078
Why is the symbol for iron "Fe" even though neither an "f" or an "e" are in the word "iron?"
Who created the periodic table?
Dmitri Mendeleev
Noble gases are inert, which that they are _________.
a. Colorless
b. Inactive
c. Reactive
B. Inactive
An ___________________ has the same number of protons and electrons but a different number of neutrons.
Isotope
The atomic number shows how many protons are in the nucleus of an atom. Therefore, how many protons does the element, Germanium indicate it would have in its nucleus?
32