All of the representative elements (s and p block) have predictable electron configurations. However, many of the transition elements have electron configurations that are not predicted by the rules for determining electron configuration.
Sodium losses its electron to chlorine
They are elements
The halogens are is group VII (17), and thus they all have 7 valence electrons. These will be located in different energy levels for the different halogens, but since they are all also p-block elements, they will all have ns^2 np^5 electron configurations, where n is the period number. Examples: Cl will be [Ne] 3s^2 3p^5 and Br will be [Ar] [Ar] 4s2 3d10 4p5 (note the inclusion of the d-block electrons for Br).
Indium bond with lots of elements to form compounds. Examples: Indium + Phosphorus --> Indium Phosphide Indium + Bromine --> Indium (I/III) Bromide Indium + Fluorine --> Indium Fluoride Indium + Oxygen --> Indium Oxide Indium + Antimony --> Indium Antimonide Indium + Arsenic --> Indium Arsenide
They are examples of elements.
Copper and Chromium have 1 electron in the 4s subshell, and 5 and 10 in the 3d subshell respectively. You needn't know beyond that until University.
Sodium losses its electron to chlorine
No
Elements in group 17 need one electron to gain a stable electron configuration. Two atoms of the same element or two elements in this family forms compounds with a single covalent bond. Examples are chlorine, bromine or iodine chloride.
Group 17 elements are non metals. Any element in group 17 are ready to obtain its stable electron configuration by sharing an electron with another non metal for a bond. Two examples are gaseous chlorine and iodine fluoride.
Predictable means "happening as expected". It can describe a person, animal, or event. Here are some examples: -The girl was so predictable; I knew she was going to raise her hand. -It was so predictable that Johnney would point out the elephant. -The cat could be described as predictable after she caught the mouse, like always.
The halogens are is group VII (17), and thus they all have 7 valence electrons. These will be located in different energy levels for the different halogens, but since they are all also p-block elements, they will all have ns^2 np^5 electron configurations, where n is the period number. Examples: Cl will be [Ne] 3s^2 3p^5 and Br will be [Ar] [Ar] 4s2 3d10 4p5 (note the inclusion of the d-block electrons for Br).
They are elements
The halogens are is group VII (17), and thus they all have 7 valence electrons. These will be located in different energy levels for the different halogens, but since they are all also p-block elements, they will all have ns^2 np^5 electron configurations, where n is the period number. Examples: Cl will be [Ne] 3s^2 3p^5 and Br will be [Ar] [Ar] 4s2 3d10 4p5 (note the inclusion of the d-block electrons for Br).
If you use high-end equipment such as electron microscopes, you can detect the amount of electrons are in an atom and therefore identify that element. Examples; 1 electron - Hydrogen 8 electrons - Oxygen 111 electrons - Roentgenium
Indium bond with lots of elements to form compounds. Examples: Indium + Phosphorus --> Indium Phosphide Indium + Bromine --> Indium (I/III) Bromide Indium + Fluorine --> Indium Fluoride Indium + Oxygen --> Indium Oxide Indium + Antimony --> Indium Antimonide Indium + Arsenic --> Indium Arsenide
hydrogen silver gold