no they have to be in the same group
no
The alkaline earth metals are Group IIA of the periodic table. Alkaline earth metals are metals with a valency of '+2'. They are:Beryllium (Be)Magnesium (Mg)Calcium (Ca)Strontium (Sr)Barium (Ba)Radium (Ra)
They are outside the nucleus. They move around the nucleus.
Liquids and gases expand inside a vacuum, so the organism's shape would be destroyed..
They are found in electron clouds around the nucleus.
In our Universe, various quantities come in "chunks" called "quanta." Amongst these are electricity, which cannot come in any amount smaller than one elementary charge. For (relatively) large things, we can have two objects separated by distances (in micrometers) of 1.000 or 2.000 or 1.500 or 1.379. However, as objects get smaller and smaller, we find that, in our Universe, the quantitization of quantities becomes more and more important. One such quantized quantity is energy state. Basically, when an electron is within the electric field of a proton, our Universe REQUIRES that the electron be in a specific orbital (try not to confuse that word with "orbits," which implies that the electron is circling around the proton) outside the proton. The lowest possible orbital that our Universe will permit an electron to be around a proton is the 's' orbital, in which the electron is MOST LIKELY to be about one angstrom from the proton, with no preference for direction. In other words, this orbital resembles (note the word!) a shell. Our Universe will not permit an electron to be in any lower energy state; ie, it can NOT get any closer to a proton. Don't like this fact about our Universe? Unfortunately, this is the one we'll have to learn about -- we don't have any other Universes to choose from.
All of the elements in Period 3, excluding group 18/VIIIA, have the same inside electron arrangement as phosphorus. They all have the electron configuration of neon as their inside arrangement of electrons.
All of the elements in Period 3, excluding group 18/VIIIA, have the same inside electron arrangement as phosphorus. They all have the electron configuration of neon as their inside arrangement of electrons.
Two identical electron configuration doen't exist for atoms.
Two identical electron configuration doen't exist for atoms.
Magnesium oxide is a refractory material.
Don't eat magnesium (metal) it will 'burn' inside your (acidical) stomach, so its very dangerous!
electron
the proton, the neutron, and the electron
Electrons are the particles found in electron clouds.
To make a 3d nucleus model you could use a styrofoam ball as the structure. Carve it so you can see the inside. Cover it clay, and then paint it.
Magnesium oxide is not a good heat conductor, so it will keep all the heat inside the furnace.And if u don't find the answer check another site :p
The arrangement of star pellets inside the shell.