Basics of the Periodic Table Flashcards
(26 cards)
What is the primary organizing principle of the Periodic Table?
Elements are organized by increasing atomic number.
True or False: The Periodic Table is arranged in rows called periods and columns called groups.
True
Fill in the blank: The vertical columns in the Periodic Table are known as __________.
groups
Which group on the Periodic Table contains the noble gases?
Group 18
What is the significance of an element’s atomic number?
It represents the number of protons in the nucleus of an atom.
What are elements in Group 1 of the Periodic Table commonly known as?
Alkali metals
True or False: Lanthanides and actinides are found in the main body of the Periodic Table.
False
What property do elements in the same group typically share?
Similar chemical properties
Which element is located at the top left corner of the Periodic Table?
Hydrogen
What is the general trend in atomic size as you move down a group in the Periodic Table?
Atomic size increases.
Fill in the blank: The elements in Group 17 are called __________.
halogens
What type of bond is most commonly formed by alkali metals?
Ionic bonds
Which element has the highest electronegativity according to the Pauling scale?
Fluorine
What is the main characteristic of transition metals?
They can form variable oxidation states and colored compounds.
True or False: All elements in the Periodic Table are metals.
False
What is the term for the energy required to remove an electron from an atom?
Ionization energy
Which two elements are considered metalloids?
Silicon and Germanium
What is the trend in ionization energy as you move across a period from left to right?
Ionization energy increases.
Fill in the blank: The elements that are good conductors of electricity and heat are known as __________.
metals
What is the name of the series of elements that includes Uranium and Plutonium?
Actinides
How does the reactivity of alkali metals change as you move down the group?
Reactivity increases.
What is the primary difference between isotopes of an element?
They have different numbers of neutrons.
Which element is known for its role in organic chemistry and has the atomic number 6?
Carbon
True or False: Nonmetals are typically good conductors of electricity.
False
