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Everything you need to know about Group 2 for the A Level Chemistry Edexcel exam, totally free, with assessment questions, text & videos.
The graph shows that both the first and second ionization energies decrease going down the group. The first ionisation energy is the energy needed to remove the first outer electron of an atom. The second ionisation energy is the energy needed to remove the second outer electron of an atom.
The periodic table - Edexcel. Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic configurations model...
This page explores the trends in some atomic and physical properties of the Group 2 elements - beryllium, magnesium, calcium, strontium and barium. You will find separate sections below covering the trends in atomic radius, first ionisation energy, electronegativity and physical properties.
May 28, 2024 · Transition Metal Elements. The elements found in Groups 3-12 are known as the transition metal elements (or simply as transition metals) because of their location on the periodic table. In order to move from Group 2A to Group 3A, an individual had to move (or transition) through columns 3 through 12.
Jun 30, 2023 · Group 2: General Properties. The elements in the group include beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
Group 2 elements are collectively known as the Alkaline Earth Metals. The outer shell of group 2 elements contains two electrons and is therefore represented by the sub shell s2. Elements in group 2 will lose two electrons to gain a full outer shell of electrons, to form ions with a +2 charge when they react.
