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What are the 2 words that describe the classification of the 17 chemical elements with the numbers 57-71?
Wiki User
∙ 13y ago
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
Wiki User
∙ 12y ago
Wiki User
∙ 13y agorare earth
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When the repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the?
The answer to, ' when repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the?'Periodic law, is the answer. PERIODIC LAW !orPeriodicity of the chemical elements properties.
When the repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the what?
It is called periodic law.
What is a combination of symbols and numbers that describes a molecule?
A combination of chemical symbols that show what elements make up a compound and the number of atoms of each element in the smallest unit of the compound is a chemical formula.
What gets written in to a chemical reaction when it is balanced?
Numbers in front of some of the symbols of the compounds and elements -Apex
What is periodic table in chemistry?
The periodic table in chemistry is an arrangement that is in tabular form for all the chemical elements. The elements are organized based on their electron configuration, atomic numbers and so on.
A set of chemical symbols and numbers used to describe elements and their ratios involved in the formation of compounds is referred to as the?
chemical formula
When the repeating chemical and physical properties of elements change periodically with the elements atomic numbers it is?
The answer to, ' when repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the?'Periodic law, is the answer. PERIODIC LAW !orPeriodicity of the chemical elements properties.
Why are atoms arranged in periods?
Because this arrangement of chemical elements is rational, satisfy the need of classification in chemistry and is very important for the study of chemical and physical properties of chemical elements, including the new discovered or prepared elements.
What elements have atomic number?
All chemical elements have atomic numbers.
When the repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the?
The answer to, ' when repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the?'Periodic law, is the answer. PERIODIC LAW !orPeriodicity of the chemical elements properties.
When the repeating chemical and physical properties of elements change periodically with the elements atomic numbers is called?
The answer to, ' when repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is called the?'Periodic law, is the answer. PERIODIC LAW !orPeriodicity of the chemical elements properties.
What has a combination of letters and numbers that indicates which elements make up a compound?
It is the chemical formula of a compound. It helps to identify the elements and their ratios i the compound. Also it is easy to use the formula to describe a compound.
Chemical elements with atomic numbers greater than that of uranium are called?
Transuranic elements
Why do elements have different atomic numbers?
Because they have their own Numbers's own. Carbon and their own chemical.
When the repeating chemical and physical properties of elements change periodically with the elements' atomic numbers it is call the?
periodic law
Which is used for chemical symbols today numbers drawings letters icons?
there are lots of chemical symbols about 110 but they are only used for elements not compounds.
What is the peridic table?
It is a table in which chemical elements are presented in order of their atomic numbers.
