What is tin on the periodic table?Periodic table:There are 118 known elements that are organized on the periodic table. The periodic table was developed by a Russian scientist named Dmitri Mendeleev. The elements are organized by the number of protons in their nucleus, called the atomic number...
百度试题 结果1 题目What is a row of elements on the periodic table called? A. octave B. period C. group D. transition 相关知识点: 试题来源: 解析 B 反馈 收藏
History of the Periodic Table End of 1700’s – less than 30 elements known Many elements discovered during 1800’s John Newlands 1864: Law of Octaves elements arranged by atomic mass their properties repeat every 8th element Law of Octaves did not work for all known elements Key idea was c...
Hint: It has one electron!First Element of the Periodic Table:The periodic table is a table in which the chemical elements are arranged by atomic number. It starts with the element with the lowest atomic number all the way to the element with the highest atomic number, Oganesso...
What elements on the periodic table are gases? What element family does bohrium belong to on the periodic table? What are the first 20 elements and their atomic numbers? What is the heaviest element on the periodic table? What do elements in the first two columns of the periodic table have...
1. What is the name for the horizontal rows of the periodic table?B A. groups B. periods C. families D. sets 相关知识点: 试题来源: 解析B1. B: The horizontal rows of the periodic table are called periods. The vertical columns of the periodic table are known as groups or families. ...
Scerri ER, 2012 What is an element? What is the periodic table? And what does quan- tum mechanics contribute to the question? Found. Chem. 14, 1, 69-81. (doi:10.1007/ s10698-011-9124-y).Scerri, E.R.: What is an element? What is the periodic table? And what does quantum ...
In Stanton's opinion, if we put all the elements into a sealed container,A. it can endanger those who perform the experimentB. the resultis unpredictableC. the balance of nature will be broken and another balance will appearD. we will get gold and platinum54. What is the purpose of ...
The Periodic Table is a table of all the elements we know about today. Elements are placed in order of atomic number ( number of protons in the nucleus ).
On the periodic table of elements, the chemical symbol for phosphorus is the letter P. It has an atomic number of 15 and is part of the pnictogen...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...