the periodic table.
periodic table!!!!!!!!!!!!!!!!!!!! teehee
Mendeleev placed iodine in the same group as fluorine because both elements have similar chemical properties, such as forming compounds with similar stoichiometry and showing similar reactivity patterns. This classification allowed Mendeleev to identify a pattern in the properties of elements and lay the foundation for the modern periodic table.
The periodic table is called "periodic" because it arranges elements in rows called periods based on their atomic number and chemical properties, showing a repeating pattern of properties.
Mendeleev included gallium (Ga), scandium (Sc), and germanium (Ge) in his periodic table because they filled gaps in the sequence of known elements at the time and helped demonstrate the periodicity of their properties. These elements were crucial in showing the predictive power of Mendeleev's periodic table in suggesting the existence of unknown elements and their properties.
The periodic table organizes elements based on their atomic number and chemical properties. It illustrates the elements in a systematic way, showing their relationships and similarities, such as periodic trends in properties like atomic size and reactivity. This organization helps us understand the behavior of elements and predict their interactions in chemical reactions.
Elements showing properties similar to oxygen would be those that are found in the same group as oxygen (group 6A, or 16). Those would be sulfur (S), and selenium (Se)
mendelev's table of evidence is showing that the metals and the elements showing in the periodic table is all about the equal amount of protons,electrons,and neutrons showing in the periodic table about the atomic mass and number is by the mass equals the protons and neutrons in the nucleus. example: Helium: symbol:He atomic number:2 atomic mass muber:4 protons:2 electrons:2 neutrons:2 how do you get 2 for the neutrons??? you subtract 2 from the atomic number and for the mas number you subtract 4 so 4-2=2 and then so the protons and electrons stay the same for the atomic number because protons and electrons they are both equal.
A block on the periodic table refers to a specific region where elements are grouped based on their electron configurations. These blocks help organize elements by showing patterns in their properties and behaviors. Each block represents a different type of electron arrangement, which can help predict an element's characteristics and its placement in the periodic table.
The arrangement of all known elements in order of their atomic numbers is called the periodic table of elements. The periodic table organizes elements based on increasing atomic number, showing similarities in properties and periodic trends across rows and columns.
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It is called the periodic table because the elements are arranged in order of increasing atomic number, showing periodic trends in their physical and chemical properties. These patterns repeat at regular intervals, or periods, across the table.