Who designed the current Periodic table of elements?
Dimitri Mendeleev
100
Heat and electricity pass through _______________ easily.
metals
100
What is a element?
A element is a pure substance that cannot be broken down by any means (chemical or physical)
100
What is the chemical symbol for iron?
Fe
100
What is the chemical symbol for Lead?
Pb
200
No two elements have the same _________________ number.
Atomic number
200
True or False - Metals do not have luster.
False
200
Every element has a _________________.
symbol
200
What is the chemical symbol for Sodium?
Na
200
What is the meaning of periodic?
This is the the meaning of something that repeats in a certain pattern.
300
The elements to the right of the zigzag are called ______________________.
non-metals
300
Can solid nonmetals be easily broken?
True
300
What are the vertical columns on the periodic table called?
groups.
300
Elements are organized in the ________________ table.
periodic
300
What is the chemical symbol for Copper?
Cu
400
How many elements are in the periodic table?
118 known elements are found on the current table
400
Where are the metalloids located?
on the zigzag line
400
What are the horizontal rows of the periodic table called?
periods
400
What is the chemical symbol for gold?
Au
400
What are chemical symbols?
These are the shortened name for elements.
500
What are the the 3 metal groups?
Metals, metalloids and non-metals
500
What are the differences between non-metals, metalloids and metals?
non-metals are usually gases and are not good conductors, metals are malleable and good conductors and metalloids an have properties of both and are semi-conductors
500
What is the simplest form of matter called?
element
500
What is the chemical symbol for Magnesium?
Mg
500
Elements cannot be __________________ other substances.