Fr is the element having atomic number 87. It is placed in group-1 and period-7 of Periodic Table.
It is Rubidium
47
Ag
Silver
107.87
Element number 37 is Rubidium.
RUBIDIUM
bromine
If an atom has 35 electrons, it will also have 35 protons and its atomic number will be 35. If you go to the periodic table an look up the element with atomic number 35 you will se it is the element Bromine and the symbol for the element is Br.
Br is element # 35 on the non-metal side Br is element # 35 on the non-metal side
That would be Bromine, the only halogen element that is liquid at SATP. It's number 35 on the Periodic Table of the Elements and is commonly found in ionic compounds with metals from groups I or II.
Only two elements on the periodic table are liquids at normal temperature and pressure. They are bromine (Br, atomic #35) and mercury (Hg, atomic #80.)
On the periodic table, the atomic weight listed for most of the elements is the average of that element's isotopes. Chlorine has 2 common isotopes: Chlorine-35 (75.77% of all chlorine) and chlorine-37 (24.23%). This has two extra neutrons. This works out to an average of 35.453.
Bromine
If an atom has 35 electrons, it will also have 35 protons and its atomic number will be 35. If you go to the periodic table an look up the element with atomic number 35 you will se it is the element Bromine and the symbol for the element is Br.
Bromine is an element on the periodic table. It has an atomic number of 35. It can be found near the right side of the table. Bromine is located in the Halogens group, which is group 7A or 17, and is also in period 4.
35, 16, and another number. S=Sulfur off the periodic table.
Br is element # 35 on the non-metal side Br is element # 35 on the non-metal side
The atomic number of bromine (Br) is 35.The atomic weight of Br is 79.904 grams per mole.Bromine is a diatomic molecule, Br2See the Web Links to the left of this answer for a periodic table with more information about this element!
Isotopes of Chlorine-35 and 37 have different atomic wt. but same atomic number. And in the modern periodic table, the elements are arranged in order of their atomic number AND NOT atomic wt. hence, Chlorine-35 and 37 occupy same place in the periodic table.
calciumThe element sulfur's atomic number is 16, so there are 16 protons in its nucleus. The element bromine's atomic number is 35, and there are 35 protons it its nucleus. This means the element will have an atomic number between 16 and 35. Since the question asked which Group 2 element fits in that window, we can go to the Periodic Table and look down the column of Group 2 elements and find that calcium is the element so described. It has the atomic number 20, and that means 20 protons in its nucleus.Remember that the Groups on the periodic table of elements are the vertical columns, and they range from Group 1 to Group 18. Group 2 elements are the so-called Alkaine Earth metals. A link is provided to the Wikipedia post on the periodic table. Bookmark this one, kids! Each element on the table is a hyperlink to the Wikipedia post on that element. Even the Group numbers are hyperlinks to the post on that Group! It just doesn't get any better that that.
The number 35 above Br represents its atomic number. It is also equal to number of protons in Bromine.
That would be Bromine, the only halogen element that is liquid at SATP. It's number 35 on the Periodic Table of the Elements and is commonly found in ionic compounds with metals from groups I or II.
Bromine is on the 17th column of the periodic table.It has atomic number of 35.
Only two elements on the periodic table are liquids at normal temperature and pressure. They are bromine (Br, atomic #35) and mercury (Hg, atomic #80.)