WebApr 6, 2024 · 2)These are numbered as 1,2,3,4,5,6 and 7 from top to bottom. 3)The first period consists of two elements. 4)The 2nd and 3rd period consists of 8 elements each, 4th and 5th consists of 18 elements each while the sixth period consists of 32 elements. 5)The 7th period is incomplete and like the 6th period would have a maximum of 32 electrons. WebNov 18, 2024 · Each horizontal row of elements in the Periodic Table is known as a period. The Periodic Table consists of seven periods, from Period 1 to Period 7. Table shows the changes in the proton numbers and number of valence electrons when going across Period 2. the proton number increases by one from one element to the next.
Period 2 element - Learnool
WebJul 29, 2024 · 1. Assertion (A): Second period consists of 8 elements. Reason (R) : Number of elements in each period is four times the number of atomic orbitaks. available in the … WebWeighing the right way. Period one is much shorter than any other row in the table, and contains only two elements, hydrogen and helium. In a quantum mechanical description … is marijuana ethical in psychology
. Consider a one-period model which includes only two - Chegg
WebApr 12, 2024 · In several areas, many social, economic, and physical subsystems interact around water resources. Integrated water management is applied to maximize economic and social welfare in an equitable manner without compromising the sustainability of vital ecosystems, mainly in hydrologic-stressed areas. The Souss-Massa basin, with its semi … WebThe Avestan period (c. 1500 – c. 500 BCE) is the period in the history of the Iranian peoples when the Avesta was produced. It saw important contributions to both the religious sphere, as well as to Iranian mythology and its epic tradition.. Scholars can reliably distinguish between two different strata in the Avesta; Old Avestan and Young Avestan, which are … WebTypical elements. Elements having fixed oxidation states in the periodic table are known as typical elements. They represent the properties of their respective group. The periodic table is divided into separate blocks namely p and s. They are also termed third-period elements. Examples are sodium, Magnesium (Mg), Aluminum (Al), Silicon (Si ... is marijuana federally approved