STATEMENTS
The elements on the periodic table, are arrange in rows in the order they were discovered. Why?
YES
NO
No, they are arranged by increasing atomic number (the number of protons in an atom's nucleus)
How many elements does the periodic table contain?
118+
He was a Russian chemist and teacher who invented the Periodic Table.
Dimitri Mendeleev
What does the symbol K represents on the periodic table and what number does it have?
Potassium. It is number 19
The properties of an element are related to the element´s location on the periodic table. WHY?
YES
NO
YES, because the table organizes elements by atomic number and groups those with similar chemical characteristics, such as valence electron counts, into vertical columns called groups
What elements are metals?
Iron, Aluminum, Copper, Gold, Silver, Zinc, and Mercury.
Do you remember the date when the periodic table was created?
1869
How many protons does a single atom of Nickel (Ni) has?
28
Fewer than half of the elements are metals.
YES
NO
False; the vast majority of elements, approximately 75–80%, are metals.
What are the propertis of metals?
Elements are classified as metals based on characteristics like electrical and thermal conductivity, malleability (being able to be hammered into sheets), and ductility (being drawn into wires)
It is a chart of the elements arranged into rows and columns according to their physical and chemical properties.
The Periodic Table
What is the symbol for GOLD on the periodic table and what is its number?
Au/79
Metals are usually good conductors of electricity.
Yes, because their atomic structure contains free, or "sea," electrons that can move easily throughout the metal.
What can you learn about elements from the periodic table?
Atomic number, atomic mass, name, and chemical symbol.
Repeating Pattern.
Ex. Months, seasons, days of the week.
What does the symbol Ag represent and how many protons does it have?
Silver - It has 47 protons
Most of the elements in living things are not metals.
YES
NO
Yes, primarily because nonmetals like carbon and oxygen can form the complex, stable molecules that form the basis of life.
How are elements arranged on the periodic table?
By increasing atomic number (number of protons), forming rows called periods and columns called groups.
Almost three-fourths of the elements on the periodic table are metals. Where can you locate the metals on the periodic tables.
They are on the left side and in the middle of the table.
What is the atomic number of the element Uranium? and how many protons does it have?
92/92