Just one: silicon. Please see the link.
ALUMINUM
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.
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
halogens
Group 18
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.
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
The elements with the electron configurations that end in ns 2 and np 5 are halogens, group VII A elements.
halogens
Elements with similar electron configurations are placed in the same group.
Group 18
Each neutral atom has a specific electron cofiguration.
scandium
All halogens or group 17 elements.
electrons
protons
what column of the periodic table contains elements whose electron configurations end with d4