Copy of Skill Check #3.1 (Unit 2 Investigation 3 Experience 1) (7/30/2025)
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Last updated 4 months ago
5 questions
Required
2
The periodic law states that:
The periodic law states that:
Required
2
When atoms react, they often lose, gain, or share electrons to form a more stable version of themselves. For example, alkali metals such as Na lose their outer shell electron in their reactions to form compounds. The electron configuration of alkali metals would then resemble those of which group of the periodic table in the compounds they form?
When atoms react, they often lose, gain, or share electrons to form a more stable version of themselves. For example, alkali metals such as Na lose their outer shell electron in their reactions to form compounds. The electron configuration of alkali metals would then resemble those of which group of the periodic table in the compounds they form?
Required
2
In the periodic table hydrogen is placed and Group 1 and helium is placed in Group 18. The most likely reason for this is:
In the periodic table hydrogen is placed and Group 1 and helium is placed in Group 18. The most likely reason for this is:
Required
2
The metallic character of elements _____ across a period from left to right. Metals are good conductors of ______.
The metallic character of elements _____ across a period from left to right. Metals are good conductors of ______.
Required
2
An early arrangement of the then known elements was proposed by a British scientist John Newlands, which he called the Law of Octaves. Like other scientists at the time, Newlands arranged the elements in order of increasing atomic mass and noted that every eighth element had similar physical and chemical properties.
In the modern Periodic Table, Mendeleev also used the atomic mass to group elements, but what did he do when he came across elements that didn't match up? Pick 2
An early arrangement of the then known elements was proposed by a British scientist John Newlands, which he called the Law of Octaves. Like other scientists at the time, Newlands arranged the elements in order of increasing atomic mass and noted that every eighth element had similar physical and chemical properties.
In the modern Periodic Table, Mendeleev also used the atomic mass to group elements, but what did he do when he came across elements that didn't match up? Pick 2