Exploring the Periodic Table Concepts

The video tutorial explains the arrangement of elements in the periodic table by atomic and mass numbers. It discusses how elements are grouped based on electron arrangement, affecting their chemical reactions. The concept of periods is introduced, showing the number of electron shells. The video also highlights the distinction between metals and non-metals, focusing on their physical properties and conductivity.

How are the elements arranged in the periodic table?

• By alphabetical order

• By atomic number and mass number

• By state of matter

• By color

What do the columns in the periodic table represent?

• Groups

• Periods

• Rows

• Blocks

What is common among the elements in Group 1?

• They do not react with other chemicals

• They are all gases

• They have two electrons in their outer shell

• They have one electron in their outer shell

How many electrons do atoms in Group 2 have in their outer shells?

• Three

• Four

• Two

• One

What is unique about the electron configuration of elements in Group 0?

• They have three electrons in their outer shell

• They have no electrons

• Their outer shell is completely filled

• They have one electron in their outer shell

What do the rows or periods in the periodic table indicate?

• The number of electrons in the outer shell

• The number of neutrons

• The number of electron shells

• The number of protons

How many electron shells do atoms in period 3 have?

• Three

• Two

• One

• Four

What does the squiggly line in the periodic table separate?

• Metals from nonmetals

• Solids from liquids

• Gases from solids

• Elements with even atomic numbers from those with odd atomic numbers

Which of the following is true about metals in the periodic table?

• All metals conduct heat and electricity

• All metals are liquids at room temperature

• All metals are gases at room temperature

• All metals are non-reactive

What is a common property of nonmetals?

• They conduct heat and electricity

• They have metallic luster

• They are all solid at room temperature

• Most of them are gases at room temperature