Periodic Table

How are elements in the periodic table organized?

• Alphabetically

• Based on physical and chemical properties

• Increasing number of electrons

• Most reactive to least reactive

Most elements on the periodic table are classified as _____.

• gases

• metalloids

• metals

• nonmetals

Groups on the periodic table are arranged ________.

• vertically

• horizontally

Each horizontal row on the periodic table is called a _____.

• period

• group

• family

• class

Which particle determine an atom's chemical properties?

• Proton

• Electron

• Neutron

What are valence electrons?

• Electrons in the innermost energy level.

• Electrons in the outermost energy level.

How many valence electrons does Arsenic have?

• 3

• 4

• 5

• 15

• 33

The purpose of all chemical bonding is for atoms to _____.

• give up their electrons

• have a full valence shell

• gain electrons

• attract each other

What happens to electrons in an ionic bond?

• Electrons are shared between atoms.

• Electrons don't move.

• Electrons jump to a higher energy level.

• Electrons are transferred from one atom to another.

What happens to electrons in a covalent bond?

• Electrons are shared between atoms.

• Electrons don't move.

• Electrons jump to higher energy level.

• Electrons are transferred from one atom to another.