Nonmetals tend to attract additional valence electrons to form either ionic or covalent bonds. The most reactive nonmetals are the halogens, e.g., #"F"# and #"Cl"#. They have one less electron configuration than a noble gas, so they require only one additional valence electron gain an octet.

This means that calcium #s^2# has 2 valence electrons it readily gives away in order to seek the stability of the octet. This makes calcium a Ca+2 cation. Chlorine is a Halogen in the 17th column or #s^2p^5# group. Chlorine has 7 valence electrons. It needs one electron to make it stable at 8 electrons in its valence shells.

2014年4月22日 · The valence electrons are the electrons that determine the most typical bonding patterns for an element. These electrons are found in the s and p orbitals of the highest energy level (row of the periodic table) for the element. Using the electron configuration for each element we can determine the valence electrons. Na - Sodium 1s^2 2s^2 2p^6 3s^1 Sodium has 1 …

2014年4月17日 · The valence electrons are the electrons that determine the most typical bonding patterns for an element. These electrons are found in the s and p orbitals of the highest energy level for the element. Sodium 1s^2 2s^2 2p^6 3s^1 Sodium has 1 valence electron from the 3s orbital Phosphorus 1s^2 2s^2 2p^6 3s^2 3p^3 Phosphorus has 5 valence electrons 2 from the …

2014年8月23日 · Most transition metals have 2 valence electrons. Valence electrons are the sum total of all the electrons in the highest energy level (principal quantum number n). Most transition metals have an electron configuration that is ns^2 (n-1)d, so those ns^2 electrons are the valence electrons. For example. How many valence electrons are there in Fe? Solution: 2 valence …

2014年2月13日 · It is not the valence electrons themselves, but the number of valence electrons that determines the chemical properties of an element. Elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. Generally, elements in Groups 1, 2, and 13 to 17 tend to react to form a closed shell with a noble gas electron …

2015年6月17日 · You take a look at its electron configuration. Zinc is located in period 4, group 12 of the periodic table and has an atomic number equal to 30. This means that neutral zinc atom has a total of 30 electrons surrounding its nucleus. To see how many of these electrons are valence electrons, write the electron configuration of a neutral zinc atom. "Zn": 1s^2 2s^2 2p^6 …

2014年2月6日 · The valence electron configuration for phosphorus is s^2 p^3. Phosphorus has an electron configuration of 1s^2 2s^2 2p^6, 3s^2 3p^3. Phosphorus is found in group 15, the other non-metals on the periodic table. Phosphorus is in the 3rd energy level, (3rd row) and 3rd column of the 'p' block 3p^3. The valence electrons are always found in the 's' and 'p' orbitals of the …

2014年1月10日 · The number of electrons in an atom's outermost valence shell governs its bonding behaviour. > The valence electrons are the electrons in the outermost electron shell of an atom. That is why elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. Generally, elements in Groups 1, 2, and 13 to 17 tend …

2014年1月7日 · The valence electrons are the electrons in the outermost electron shell of an atom. > The number of electrons in an atom's outermost valence shell governs its bonding behaviour. That is why elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. Generally, elements in Groups 1, 2, and 13 to 17 tend …