KADUGTONG NG INORG

Nuclide

Anyone of the more than 2500 species of atoms characterized by the number of protons and neutrons in the nucleus

2500

Nuclide is any one of more than _________ species of atom characterized by the number of protons and neutrons in the nucleus

Isotopes

These are nuclides or elements having the same number of protons but different number of neutrons

Isobars

Nuclides having the same mass under but different atomic numbers

Isotones

Nuclides with the same number of neutrons

Allotropes

Different forms of the same element existing in the same physical state

White

Very reactive color

Red

Not very reactive color

Black

Stable

Antoine lavoiser

Wrote the first extensive list of elements containing 33 elements

33 elements

Antoine Lavoiser wrote the first extensive list of elements containing ___________________

Antoine lavoiser

First true periodic table

Mayer and mendeleev

Physical and chemical properties are periodic functions of their atomic weights

Mayer and mendeleev

First periodic law

Henry mosely

Elements are arranged based on atomic numbers

Henry mosely

Modern periodic table

Dmitri Ivanovich mendeleev

Triads by johann dobereiner

According to physical properties

Johann dobereiner

Middle elements of triad was nearly equal to the arithmetic mean of atomic masses of other two elements

Arithmetic mean

According to johann dobereiner middle elements of triad was nearly equal to the

John alexander newland

Law of octaves

John alexander newland

Every eight element has properties similar to the first element

Johann wolfgang dobereiner

Law of triads strontium calcium barium based on their chemical properties

Strontium calcium and barium

According to johann wolfgang dobereiner what are the three element contains the law of triads

Leopold gmelin

Worked with this system and by 1843 he had identified 10 triads three groups of four and one group of five

1843 10 3 4 1 5

Leopold g melyn worked with this system and by _____ he had identified _____ triads, ______ groups of _________, _______ group of _____

Jean baptiste dumas

Published work in 1857 describing relationships between various groups of metals

1857 metals

Jean baptiste dumas published work in ________ describing relationship between various groups of ________

Auguste kekulé

Has observed in 1858 that carbon has a tendency to bond with other elements

1858 carbon

August kecule had observed in ________ that __________ has a tendency to bond with other elements

Alkali metals

What is a group name of group 1a

Coinage metals

What is the group name of group IB

Alkaline earth metals

What is the group name of group IIA

Zinc group metals

What is the group name of Group IIB

Boron family

What is the group name of group IIIA

Scandium subgroup

What is the group name of group IIIB

Carbon family

What is the group name of group IV-A

Titanium subgroup

What is the group name of group IV-B

Nitrogen family

What is the group name of group V-A

Vanadium subgroup

What is the group name of group V-B

Oxygen family

What is the group name of group VIA

Chromium subgroup

What is the group name of group VIB

Halogen family

What is the group name of group VIIA

Manganese subgroup

What is the group name of group VIIB

Inert gases

What is a group name of group VIIIA

Iron triad light triad heavy triad

Tell me the 1st, 2nd, 3rd triad

Fe Co Ni

What elements contains first iron triad

Ru Rh Pd

What element contains second light triad

Os Ir Pt

What element contains third heavy triad

Periodic table

Arrangement of the elements in the table based on the periodic law

Periodic table

Elements with similar chemical properties are found in vertical columns called groups or families

Groups or families

In modern periodic table elements with similar chemical properties are found in vertical columns called

Vertical columns

In modern periodic table elements with similar chemical properties are found in __________________ called groups or families

18

How many groups or families are in the periodic table

7

How many periods are in the periodic table

Group or family

The us system of roman numeral and the letter either a or b at the top of the column

Roman numeral a b

In writing group or family the us system uses _________________ a and a letter either ____ or ____ at the top of the column

International union of pure and applied chemistry

What is the acronym of IUPAC

Group or family

Daiupak but not universally used system uses only a number from 1 to 18

1 18

The IUPAC but not universally used system uses only a number from _____ to ______

Period

Horizontal row of elements arranged according to increasing atomic numbers

Period

Numbered from top to bottom

58 71 92 103

Elements _____ - _____ and ____ - ______ are not placed in their correct periods but are located below the main table

Group and period of periodic table

Each element belongs to a

Electronic configurations

Are used to classify elements of the periodic table in numerous ways

Electronic configurations

Are used to classify elements of the periodic table by the location of distinguishing electrons status as noble gas status as representative transition or inner translation elements status as metal nonmetal or metalloid

Representative element

Element in which the distinguishing electron is found in an s or a p subshell

Transition element

Element in which the distinguishing electron is found in a ɗ dub shell

Inner transition element

Element in which the distinguishing electron is found in an f subshell

Periodic trends

Specific patterns that are present in the periodic table that illustrate different aspects of a certain element including its size its electronic properties

Periodic trends

Arising from the arrangement of the periodic table provides chemist with an invaluable tool to quickly predict an elements properties

Periodic trends

Exist because of the similar atomic structure of the elements within their respective group families or periods and because of the periodic nature of the elements

Electronegativity electron affinity

Give me two major periodic trends

Major periodic trends

Ionization energy

Major periodic trends

Metallic character

Major periodic trends

Atomic or ionic radius

Electronegativity

The ability of an atom to attract electrons toward itself when it is part of a chemical bond

Atom electronegativity

__________ with high _________________ strongly pull shared electrons

> increasing ^ increasing

Explain how electronegativity increasing in periodic table

Ionization energy

The amount of energy is required to remove an electron from a neutral atom in the gaseous state

Ionization energy

Higher _________________ means it is harder to remove an electron

Electron affinity

The energy change that occurs when an electron is added to a neutral atom in a gaseous state

Electron affinity

It usually releases energy when an atom gains an electron

Atomic radius

The distance from the nucleus to the outermost electric shell of an atom

< increasing ⌄ increasing

Explain how atomic radius increasing in the periodic table

Ionic radius

The size of an ion

Cations

Are smaller than their atoms

Anions

Are larger than their atoms

>Decreasing ⌄ increasing

Explain how ionic radius increasing or decreasing in the periodic table

Metallic character

The tendency of an atom to lose electron and form positive ions

Metallic character

Elements with high ________________ are typically good conductors of heat and electricity and are found on the left side of the periodic table

< increasing ⌄ increasing

Explain how metallic character increasing in the periodic table