This is an outermost electronic configuration of an atom. And the atom belongs to 13th group.In ns2np1 : n -stands for nth shell.s2: stands two s subshell -electronsp1: stands for one p subshell -electron. Related Question & Answers. 7.3k LIKES.
What does ns1 mean in chemistry?
What is ns2np2?
What group is ns2 np4?
What element is ns2np5?
The elements of Group 17 (fluorine (F) – 9, chlorine (Cl) – 17, bromine (Br) – 35, iodine (I) – 53 and astatine (At) – 85) are called the halogens. The halogens all have the general electron configuration ns2np5, having seven valence electrons.
How do u know how many valence electrons an element has?
For neutral atoms, the number of valence electrons is equal to the atom’s main group number. The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.
How many columns wide is the s-block?
Because each orbital can have a maximum of 2 electrons, there are 2 columns in the s block, 6 columns in the p block, 10 columns in the d block, and 14 columns in the f block. Hydrogen and helium are placed somewhat arbitrarily.
What is ns2np1?
This is an outermost electronic configuration of an atom. And the atom belongs to 13th group.In ns2np1 : n -stands for nth shell.s2: stands two s subshell -electronsp1: stands for one p subshell -electron. Related Question & Answers. 7.3k LIKES.
What is ns2np6?
Noble Gas Electron Configuration = ns2np6 = an octet, 8 electrons in the valence shell (highest n value). This is a very stable arrangement because it allows the greatest number of electrons to experience the greatest possible effective nuclear charge (Zeff).
What is Group 17 called?
The halogens are located on the left of the noble gases on the periodic table. These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
What does a Lewis dot diagram allow you to show?
Lewis structures, also known as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.
How many energy levels are there?
Electron Shells, Subshells & Atomic Orbitals
The highest energy level number (1 through 7) for the electrons in an atom corresponds to the period (or row) in the periodic table to which that atom belongs. Because there are 7 periods in the table, there are 7 energy levels.
How do you read the energy level on the periodic table?
When you look at the Periodic Table of the Elements, the energy levels of the atoms correspond to the rows of the table. The two elements in the top row, hydrogen and helium, are filling their first energy level with their final electrons. The eight elements of the second row are filling their second energy level.
What does 2p6 mean?
1s2 2s2 2p6 This represents 2 electrons in the s subshell of the first energy level , 2 electrons in the s subshell of the second energy level and 6 electrons in the p subshell of the second energy level.
What is after 2p6?
The sequence of addition of electrons is as follows: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6, where the first number indicates the energy level, letter indicates orbital type, and second number indicates the number of electrons within each subshell.
Does f gain or lose electrons?
For example, fluorine has seven valence electrons, so it is most likely to gain one electron to form an ion with a 1- charge.
Does an atom lose electrons?
Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.
What is the name of group 1?
The alkali metals are six chemical elements in Group 1, the leftmost column in the periodic table. They are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
What is group 2 called?
No. Lr. Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They are harder and less reactive than the alkali metals of Group 1A.
How can you tell how many valence electrons an element has?
For neutral atoms, the number of valence electrons is equal to the atom’s main group number. The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.
How do you find formal charge?
To find formal charges in a Lewis structure, for each atom, you should count how many electrons it “owns”. Count all of its lone pair electrons, and half of its bonding electrons. The difference between the atom’s number of valence electrons and the number it owns is the formal charge.