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It occurs at the top of the metals (alkaline metals) - the first group of elements but
while normally shown at the top of the Group 1 elements in the Periodic Table, the term "alkaline metal" refers only to Group 1 elements from lithium onwards. (Lithium is the next one down)
What else can I help you with?
What group is hydrogen in in the periodic table?
Hydrogen is the first element in the periodic table of Mendeleev - atomic number 1. Hydrogen is placed in the group and period 1 of this table.
Top 10 elements that make up the earth's atmosphere?
The top 10 elements that make up Earth's atmosphere are: nitrogen (78%), oxygen (21%), argon (0.93%), carbon dioxide (0.04%), neon, helium, methane, krypton, hydrogen, and xenon. These elements, along with trace gases and water vapor, help create the composition of the atmosphere that sustains life on Earth.
What are the top 10 elements in the earths atmosphere?
The top 10 elements in Earth's atmosphere, by volume, are nitrogen, oxygen, argon, carbon dioxide, neon, helium, methane, krypton, hydrogen, and xenon. Nitrogen and oxygen together make up around 99% of the atmosphere.
Why is hydrogen in the perodic table?
Hydrogen is in the periodic table because it is an element, and all elements are in the periodic table.
What are the top three elements in the earths atmosphere?
The top three elements in Earth's atmosphere are nitrogen (78%), oxygen (21%), and argon (0.93%). These three elements together make up the vast majority of the gases present in the atmosphere, with nitrogen being the most abundant.
Why is hydrogen placed on the top of the periodic table of elements?
It is placed at the top because it has one proton in its nucleus. Hence giving it an atomic number of one
Where is hydrogen on the periodic table?
It is at the very top left column. Hydrogen is the first element.
What are the elements in the first column or group?
Columns are periods, and is different to group. On the Periodic Table; Column = Group Row = Period Group 1 (Top to bottom) = Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium, Francium Period 1 (Left to Right) = Hydrogen, Helium
A sentence with the word alabaster?
The statue was placed on top of an alabaster column
What is the evidence that suggests that hydrogen should be in the first column of the periodic table?
Hydrogen should be in the first column of the periodic table because it has one electron in its outer shell, like the other elements in Group 1 (alkali metals). It also displays similar chemical properties to the alkali metals, such as the tendency to lose an electron to form a positive ion. Additionally, hydrogen behaves like a nonmetal in many instances, which supports its placement at the beginning of the periodic table.
Why is hydrogen placed at the top of the periodic table and not in group 1?
Hydrogen is in fact in group 1 physically although not considered an alkali metal. It is at the top because the table is arranged by increasing atomic number; hydrogen is atomic number one, so it's first on the table.
What does a Roman numeral indicate at the top of a periodic table column?
A Roman numeral at the top of a periodic table column indicates the group number, which signifies the number of valence electrons in the atoms of elements within that column. For example, Group I elements have one valence electron, while Group VII elements have seven. This classification helps predict the chemical behavior and reactivity of the elements in that group.
What is the correct placement of hydrogen in the periodic table?
It is placed in group 1, period 1 on the modern periodic table
How do you justify the position of hydrogen at the top of various group?
Hydrogen was placed in the first group because has a high tendency to loss an electron.
Is Hydrogen in its own group on the periodic table?
Yes, hydrogen is often considered to occupy its own group in the periodic table, distinct from other elements. While it is placed at the top of Group 1 (alkali metals) due to its single electron, its properties differ significantly from those of alkali metals. Hydrogen is a nonmetal and exhibits unique characteristics, making it somewhat of an outlier among the elements.
How do you justify the position of hydrogen at the top of various groups?
Hydrogen is a unique element of the Periodic Table. Due to its similarities in properties it can be placed at the top of group 1A or 4A or 7A.
Why is hydrogen written alone on the periodic table?
Hydrogen is not exactly written alone on the periodic table. The table is organized into rows and columns, both of which represent groupings of elements for different reasons. For example, elements in the same column (called "groups") all have the same number of free electrons, or "valence electrons". Elements in the same row have the same or similar numbers of filled electron shells. Hydrogen is in the top row because it has only 1 electron shell and it is in the far left column because it has 1 free electron (just like all of the elements beneath it). Helium, on the other hand, also has 1 electron shell, but is in the far right column because it has a full electron shell (no free electrons). This makes it chemically similar to all of the elements beneath it (this group is called the "noble gases" because they have no free electrons to interact with other elements).
