The element that would have properties most like calcium (ca) is
Beryllium (Be)
Magnesium (Mg)
Strontium (Sr)
Barium (Ba)
This are elements in group two in the periodic table. They are also known as Alkaline earth metals. They have an oxidation state of 2+ since they have two valence electrons in their outermost energy levels.
Since a mole of atoms contains 6.0221 x 1023 atoms, there are 2.2452 x 1022 zinc atoms and 5.9230 x 1020 copper atoms in a penny, for a total of 2.3044 x 1022 atoms in a penny. Public Domain Image, source: NASA/JPL-Caltech
Answer:
Explanation:
The empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound.
Answer:
Boron and Aluminium
Explanation:
Boron and Aluminium are present in Group 13 of the modern periodic table. Group 13 (IUPAC System) can also be referred to as Group III-A. Logically, Boron and Aluminum can't be placed alongwith elements such as Yttrium as they don't exhibit properties of a transition metal.
Answer:
The particles in a solid are tightly packed and locked in place. ... The particles in a liquid are close together (touching) but they are able to move/slide/flow past each other. The particles in a gas are fast moving and are able to spread apart from each other.
Explanation:
