What group has the following electron configuration ving electron configuration, 1s? 2s 2p%324p w the electron dot...
concerning the electron configuration of F, 1s^2 2s^2 2p^5, what is the configuration for the VALENCE shell electrons ?
1s 2s 2p 3s*3p 4s 3d"4p 5s4d? 17. Which ion with a +1 charge has the electron configuration 1s 2s 2p 3s 3p 3d 4s 4p? Which ion with a -2 charge has this configuration? 18. Which of the following atoms contains only three valence electrons: Li, B, N, F, Ne? 19. Circle the atoms with two unpaired electrons. (a) Mg (b) Si (c) S 20. Place the following in order of increasing atomic radius. As 0 Br A) As...
Chemistry CHE 140, 170, 180 о Goal: With reference only to the periodic table, to write the electron configuration of the ground state (lowest energy), gaseous, atoms. Tools: (1) A list of the electronic sublevels within the atom in order of their increasing energy. (Write the list, 1s 2s 2p <6s, in the boxes below as indicated, by inspection of the "Aufbau" diagram or of the periodic table, where the order is explicit) (ii) Fill in the box below each...
6. Identify the following: a. An-excited state of this element has the electron configuration 1s 2s 2p Beryllium b. The ground-state electron configuration is [Ne]3s 3p Sulfur c. An excited state of this element has the electron configuration [Kr5s4dº5p 6s' Silver d. The ground-state electron configuration contains 3 unpaired 5p electrons
A neutral atom has the following electron configuration: 2, 2 6, 2, 3 1s 2s 2p 3s 3p What is the chemical symbol for the atom? How many electrons does the atomn have? How many 2p electrons are in the atom?
8. Which elements are represented by the following electron configurations? a. 15-2s 2p 3s 3p 3d 10 452 4p highest occupied orbitals valence electrons b. 1s 2s 2p 3s 3p 4s 3d highest occupied orbitals_ valence electrons c. [Kr] 5s 4d 0 5p? highest occupied orbitals valence electrons d. [Ne] 3s 3p highest occupied orbitals valence electrons e. [Ar]3d 4s? highest occupied orbitals valence electrons
One of the excited states of a C2 molecule has the electron configuration: (?1s)2(?1s*)2(?2s)2(?2s*)1(? 2p)4(?2p)1.
3. The electron configuration of a chemical species is 1s 2s 2p 38* sp a. State the element with the configuration. b. State an element with similar properties to the element in part a. c. Under what circumstances could this electron configuration belong to an element in group 6? d. Under what circumstances could this electron configuration belong to an element in group 2? e. Is it possible for this electron configuration to belong to an element in period 2?
An atomic anion with a charge of -1 has the following electron configuration: 18²2s²2p®3s²3p? What is the chemical symbol for the ion? How many electrons does the ion have? X How many 2p electrons are in the ion?
17. Identify the elements that have the following electron arrangements: b. 2,8,6 а. 2,4 c. 2,8,8 d. 2,1 f. 2,8, е. 2,8 g. 2,8,8,2 18. Write the group number and draw the electron-dot symbol for each of the following elements: a. sulfur b. nitrogen c. calcium d. sodium 19. The atomic number of an atom is equal to the number of A) neutrons plus protons B) nuclei C) electrons plus protons E) neutrons D) protons 20. The number of neutrons...