Chemistry

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1. chemistry

   Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron configuration for that element. Excited State: 1s2 2s2 2p2 3s1 Element Symbol: ? Ground State: ?

2. AP Chemistry

   Which of the following electron configurations correspond to an excited state? Identify the atoms and write the ground-state electron configuration where appropriate. If the configuration is a noble gas, enter the noble gas in

3. Chemistry

   Electron configuration for phosphorus is 1s2 2s2 2p6 3s2 3p3. So the number of electron must be 15 , right ? But , what if m = 1 ? Does it effect the number of electron ?

4. Chemistry

   Metals lose electrons under certain conditions to attain a noble-gas electron configuration. How many electrons must be lost by the element Ca? Is it 2 e^-? Which noble-gas electron configuration is attained in this process? argon

1. Chemistry

   How many valence electrons does molybdenum have? (give only 1 answer) Go to this site and look for the electrons available in the outside shells. Click on element #42 and scroll down the menu on the left side until you come to

2. Chemistry

   Which group of elements is characterized by an s2p3 configuration? What is the electron configuration of group 15? http://www.chemsoc.org/visElements/pages/data/intro_groupv_data.html thanks

3. Potassium (chem)

   Confirm that the experimentally observed electronic configuration of K, 1s22s22p63s23p64s1 is energetically more stable than the configuration 1s22s22p63s23p63d1. __ i know that it is energetically more stable for the electron to

4. chem

   1. under what circumstances is the molecular geometry around a single central atom the same as the electron group geometry around the central atom? 2.If all of the electron groups around a single central atom are bonding, and the

1. chemistry

   An atom has a valence shell configuration of ns2p5. To which group of elements in the periodic table does it belong? transition metals Halogens alkaline earth metals alkaline metal

2. Chemistry! HELP;

   An atom of potassium (K) has 19 protons: 18 electrons in its inner electron energy levels and 1 electron in its outer energy level. What is the easiest way for this atom to get a filled outer energy level? What is formed?

3. Chemistry

   What is the electron configuration called that has 18 electrons in the outer energy level and all of the orbitals filled? Noble gas configuration

4. Lauren

   Write the electron configuration of Sn and Sn2+ Give the electron configuration of Cu+ and Cu2+

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