1. Electrons are arranged around the atom in shells according to energy level. As an electron, moves farther away from the nucleus the energy of the electron ___ 2. Shells are also called ___ Energy levels ______. The first ene
Draw the electronic configuration of He
2
1. Electrons are arranged around the atom in shells according to energy level. As an electron, moves farther away from the nucleus the energy of the electron ___ 2. Shells are also called ___ ______.
increases, energy levels
a) How can you detect the location of an element in the periodic table, from its electronic configuration?
1- Drawing the electronic configuration of the element. 2- Determine the number of filled energy levels with electrons which correspond to the period number
Draw the electronic configuration of Cl
2,8,7
Draw the electronic configuration of Ar
2,8,8
Draw the electronic configuration for the following elements: P15
2,8,5
1. Electrons are arranged around the atom in shells according to energy level. As an electron, moves farther away from the nucleus the energy of the electron ___ 2. Shells are also called ___ Energy levels ______. The first ene
How can we determine the number of neutrons of silicon?
1- By finding the atomic number from the key element of the periodic table (The smaller number= number of protons) 2- Checking the mass number from the
3. The first shell can contain a maximum of _ ___ electrons. 4. electrons in the outermost energy levels are called __ ________ 5. The second shell can contain a maximum of _ __ electrons.
2, valence electrons, 8
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