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Periodic Table of Elements
Chapter 5 Chemistry Review
Terms in this set (49)
Mendeleev attempted to organize the chemical elements based on their
Mendeleev is credited with developing the first successful
In developing his periodic table, Mendeleev listed on cards each element's name, atomic mass, and
What permits the properties of an element to be predicted before the element is discovered?
Evidence gathered since Mendeleev's time indicates that a better arrangement than atomic mass for elements in the periodic table is an arrangement by
4 and 5
Which two periods have the same number of elements?
increasing atomic number
In the modern periodic table, elements are ordered according to
the periodic law
The principle that states that the physical and chemical properties of the elements are periodic functions of their atomic numbers is
Elements in a group or column in the periodic table can be expected to have similar
A horizontal row of blocks in the periodic table is called a(n)
The atomic number of lithium, the first element in Group 1, is 3. The atomic number of the second element in this group is
Barium, atomic number 56, is the fifth element in Group 2. What is the atomic number of radium, the next element in Group 2?
Identify the sublevels in a period that contains 32 elements.
How many elements are in a period in which only the s and p sublevels are filled?
sublevels being filled with electrons
The length of each period in the periodic table is determined by the
The period of an element can be determined from its
Elements to the right side of the periodic table (p-block elements) have properties most associated with
Neutral atoms with an s2p6 electron configuration in the highest energy level are best classified as
The elements that border the zigzag line in the periodic table are
The group of 14 elements in the sixth period that have occupied 4f orbitals is the
are less metallic
Within the p-block elements, the elements at the top of the table, compared with those at the bottom,
Which orbitals are characteristic of the lanthanide elements?
The most reactive group of the nonmetals are the?
are largely unreactive
The most characteristic property of the noble gases is that they
are less reactive
Compared to the alkali metals, the alkaline-earth metals
The energy required to remove an electron from an atom is the atom's
A measure of the ability of an atom in a chemical compound to attract electrons is called
The element that has the greatest electronegativity is
Ionization energy is the energy required to remove ____ from an atom of an element.
When an electron is acquired by a neutral atom, the energy change is called
A positive ion is known as a(n)
A negative ion is known as a(n
have the highest ionization energies
In the alkaline-earth group, atoms with the smallest radii
Across a period in the periodic table, atomic radii
For each successive electron removed from an atom, the ionization energy
As you move down the periodic table from carbon through lead, atomic radii
As you move left to right from gallium through bromine, atomic radii
The energy required to remove an electron from an atom ____ as you move left to right from potassium through iron.
The electrons available to be lost, gained, or shared when atoms form molecules are called
groups 1 and 2
Which groups in the main group have lower electronegativity than d-block elements?
What are the radioactive elements with atomic numbers from 90 to 103 called?
What are the elements with atomic numbers from 58 to 71 called?
Argon, krypton, and xenon are
Elements in which the d-sublevel is being filled have the properties of
In nature, the alkali metals occur as
The elements in Group 1 are also known as the
Which block in the periodic table contains the alkali metals?
The first member of the noble gas family, whose highest energy level consists of an octet of electrons, is
either released or absorbed
When an electron is added to a neutral atom, a certain amount of energy is
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