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Elements in the second group have 2 outer shell electrons and are also very reactive They are called?
Wiki User
∙ 14y ago
Elements in the second group have 2 outer shell electrons and also very reactive. What are they called?
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoAlkaline Metals
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How do periodic trends illustrate stability and change in chemistry?
Periodic trends illustrate how some elements are very reactive while others are stable.
What is the second most reactive metal?
The 2nd most reactive is Cesium after Francium. If you disregard Francium because it is radioactive, then it would be Rubidium after Cesium.
What goes around a circuit?
Charge, in the form of electrons, flow through a circuit. This is called electric current. 1 amp = 1 coulomb of charge per second flowing past a point in the circuit.
What do metals do with electrons?
Metals are elements belonging to first , second or third group. They have one ,two or three valence electrons (electrons present in the last orbit of an atom). They lose this electrons to gain stability as they are highly unstable and by doing so they react . NOTICE: An atom can only lose the electron if an atom of other element is ready to take it.
Why K L M N O P Q in model of Bohr?
Conventional wisdom had it that they weren't sure that they had the innermost shell of electrons, and decided to start half-way through the alphabet to allow for some inner shells. Subsequently proven unnecessary.
What is the chemical family of elements that contains the second group of or most reactive metals?
These metals are called alkaline earth metals.
What are the elements called in the first group of the periodic table that have one outer shell electron and is extremely reactive?
The elements in the first group of the period table which have one electron in their outer shells and react extremely well are also known as the alkali metals. These elements are Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium.
Where are the most active elements located on periodic table called?
The most reactive elements on the periodic table are the alkali metals and the halogens, and are located in the very left row and second row from the right respectively
How many electrons will the elements have in the second group have on the periodic table?
There are 2 valence electrons (electrons in the outer shell) of group 2 elements in the ground (un-ionised or standard) state. This causes them to form +2 ions.
Which of the elements which have their valence electrons in the second energy level is the largest?
Neon
What group of elements consists of non reactive non metals?
Non-reactive elements or compounds are called inert. This is a bit misleading, however - anything can be made to react given the right circumstances. The noble gases are about as close as you can get to truly inert, but even they will react under extreme conditions. >>M.T.<<
How does the Bohr model of the atom relate to the Periodic Table?
The Bohr model of the atom places electrons in orbits or "shells." Elements in the first period only have electrons in the first shell. Elements in the second period have electrons in the first two shells. Elements in the third period have electrons in the first three shells, and so on.
How do you determine how reactive an element is based off its atomic number?
the reactivity of depends on the number of its outer shell electrons. one all outer shell electrons are there then there is little reactivity. If the atomic number is 19 then the element will 19 protons and 19 electrons. this means it has 2 electrons in the 1st shell 8 in the second 8 in the 3rd and 1 in the last. as it only has one it will be very reactive =)
What group is the second column of the periodic table?
Alkaline earth metals are placed in second column. The elements have 2 valence electrons.
What group of the periodic table has a 2 plus charge and is reactive?
The second column from the left end of the table (Group IIA) consists solely of reactive elements, each with a charge of 2+. These are the Alkaline Earth Metals.
What are the last two lines on the periodic table called?
They are called f-block elements. The first row elements are called lanthanides. The second row elements are called actinides.
What numbers are an unstable or reactive atom?
The numbers listed represent the first, second and third energy levels, respectively. On this basis, which of the following is an unstable or reactive atom? 2, 8, 1
