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What trends do you notice about the atomic number and atomic mass as you move left to right across the table?
Wiki User
∙ 9y ago
they increase by one going from left to right
totally a guess
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoWiki User
∙ 9y agoMoving from left to right (in a row) the atomic number increases as protons are added. The atomic mass also increases as protons and neutrons are added.
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What 2 atomic properties will you examine for periodic trends?
- atomic number (number of protons)- electron configuration
Why is atomic number better than atomic mass for organizing the elements in the periodic table?
Atomic number is a unique number for each element. No two elements have the same atomic number. Atomic number is also the number of protons in the nuclei of the atoms of any given atom. Atomic mass, however, is the number of protons, neutrons and electrons. The number of neutrons can vary with different isotopes of the same element, this means that atomic mass can vary with different isotopes. So atomic number does not vary, but atomic mass does, so it is more logical to use atomic number to organize the elements. In addition, when the elements are arranged according to atomic number into seven rows and 18 columns, it becomes evident that there are certain trends that occur across the periods, and that elements in the same group have similar properties.
What are the period and group trends in electronegativites?
The trends from left to right in a period increase (nuclear charge), and moving down a group decreases (shielding).
What is the trend as you move down a group?
Across chemical groups, elements are generally organized according to their chemical mass with the execption of a couple spots. If you study the periodic table of elements than the first trend you would notice is that the atomic number rises by one each time. Down periods, trends occur such as elements in a colmn are organized by their properties.
Atomic mass trends in the periodic table?
Atomic Mass increases in size as the atomic number increases. For example, hydrogen weighs about 1.01 grams per mole and it has periodic #1. Helium is atomic #2 and it has an atomic mass of 4.00 g/mol. This trend continues all the way to the last known pure element.
What trends do you notice about the atomic number and atomic mass as you move left to right across the periodic table?
The atomic number increases from left to right. The atomic number also increases.However, there are few exceptions for atomic mass.
What 2 atomic properties will you examine for periodic trends?
- atomic number (number of protons)- electron configuration
Why is the periodic table useful for studying the properties of different elements?
well, the periodic table is very useful because you have the atomic number, atomic mass, and even the trends across a period or down a group.
What physical trends for atomic number versus covalent radius?
Overall as atomic number increases covalent radius increases.
How are period and group trends in atomic radii are related to electron configuration?
The atomic radius decreases along the elements across a period. Along a group, there is an increment in the atomic radius of corresponding elements.
Why is atomic number better than atomic mass for organizing the elements in the periodic table?
Atomic number is a unique number for each element. No two elements have the same atomic number. Atomic number is also the number of protons in the nuclei of the atoms of any given atom. Atomic mass, however, is the number of protons, neutrons and electrons. The number of neutrons can vary with different isotopes of the same element, this means that atomic mass can vary with different isotopes. So atomic number does not vary, but atomic mass does, so it is more logical to use atomic number to organize the elements. In addition, when the elements are arranged according to atomic number into seven rows and 18 columns, it becomes evident that there are certain trends that occur across the periods, and that elements in the same group have similar properties.
Atomic size generally as you go down a group?
Atomic size generally increases as you go down a group
What is the most important in determining the periodic trends across a period?
increasing number of electrons
What two atomic trends increases as you move across the periodic from left to right?
Electronegativity, electron affinity, nonmetalic nature, acidic nature of oxides, valency with respect to oxygen ( from 1 to 7), number of electrons in the outer most shell ( 1 to 8) increases across a period from left to right
What trends in the elements properties do you notice about elements that are in the same group?
They have the same valency. The atomic radius of elements increases by one as you go down the group. They also have the same properties
Which 3 atomic properties will you examine for periodic trends?
For periodic trends we will examine1- Electronic configuration 2- Ionization energy 3- Atomic radius
What are the period and group trends in electronegativites?
The trends from left to right in a period increase (nuclear charge), and moving down a group decreases (shielding).
