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Metals with two electrons in the outer energy level?
Metals with two electrons in the outer energy level are typically found in Group 2 of the periodic table, known as the alkaline earth metals. Examples include beryllium and magnesium. These metals tend to form 2+ cations by losing their outer electrons to achieve a stable electron configuration.
What is the value of a resistance if 20v drives 2a through it?
Simply divide the voltage by the current. This means you apply Ohm's Law.
What is the dimensional formula of magnetic flux?
The dimensional formula of magnetic flux is [M^1 L^2 T^-2 I^-1].
What is magnitude of electric field intensity due to dipole of length 2a at the mid point of line joining two charges?
The magnitude of the electric field intensity due to a dipole of length 2a at the midpoint of the line joining the two charges is given by: ( E = \frac{k \cdot p}{a^{3}} ), where ( E ) is the electric field intensity, ( k ) is the Coulomb constant, ( p ) is the dipole moment, and ( a ) is the length of the dipole.
What are the dimensions of magnetic field?
The dimensions of magnetic field are given in units of Tesla (T), which is equivalent to kg/s^2A. Magnetic field is a vector quantity with both magnitude and direction.
Does group 2A elements lose or gain protons or electrons?
Group 2A elements tend to GAIN electrons!!
Does group 2a elements lose two electrons?
Yes
When a group 2A elements form ions they?
When Group 2A elements form ions they lose the electrons in their outer shell. In doing so they form positive ions known as cations.
When group 2a elements form ions what happens?
Group 2A elements (alkaline earth metals) tend to lose two electrons to form 2+ ions. This is because they have two valence electrons and tend to achieve a stable electron configuration similar to noble gases by losing those two electrons.
Does group 2A gain electrons or lose electrons in order to achieve a noble gas configuration?
loses 2 electrons to achieve a noble gas configuration
Why do group 2A metals form ions with a positive 2 charge?
These metal may lose two electrons.
Compared with Group 2A elements Group 6A elements have?
Group 6A elements have a higher electronegativity and a greater tendency to gain electrons to achieve a stable octet configuration. In contrast, Group 2A elements have a lower electronegativity and typically lose electrons to form cations.
How is the ionic charge of a group 1A 2A or 3A ion determined?
The ionic charge of a group 1A, 2A, or 3A ion is determined by the number of electrons lost or gained to achieve a full valence shell. Group 1A ions lose 1 electron to attain a +1 charge, group 2A ions lose 2 electrons for a +2 charge, and group 3A ions lose 3 electrons for a +3 charge.
Do elements in group 2A gain or loose electrons when they become ions?
Lose 2Alkaline-earth metals have 2 outer shell electrons. All atoms "want" eight. They will achieve a full outer shell by losing or gaining the least number of electrons. Since group 2A elements have two valence electrons, they would either have to gain 6 electrons or lose 2. It is easier to lose 2.
What does group 6A elements have compared to group 2A?
Group 2A * Known as Alkaline earth elements * All are metals * Occur only in compounds * React with oxygen in the general formula EO (where O is oxygen and E is Group 2A element)
What elements have 2 valance electrons?
The entire Group 2A has 2 valence electrons; this includes sodium and calcium.
What is the number of valence electron for all the elements in periodic table group 2A 2?
Elements in group 2A of the periodic table have two valence electrons. This group includes elements such as beryllium, magnesium, calcium, strontium, barium, and radium.
