I had to do a report in sicence and found this out:
the chemical properties of calcuim are:
reactive alkilane earth metal
now everyone can know!!!
-Alivia
Please somebody i need the answer science class is sooo hard
The same number you started with. In every chemical reaction the total number of atoms at the start is the same as the number of atoms at the end.
same number of each element
2) Atomic Number
1. An element contain only specific atoms of this element and no other atoms. 2. Compounds as calcium aluminates contain both aluminum and calcium.
names
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who the hell knows... and who honestly cares
Please somebody i need the answer science class is sooo hard
Because molecules have other chemical and physical properties than the containing atoms !
No. Atoms of the same element have the same chemical properties.
No. If two atoms are the same then they are of the same element. The type of atoms is determioned by the number of protons in the nucleus. A chlorine atom has 17 protons, a calcium atom has 20.
An atom of calcium
atoms in the same group are similar. calcium is in group 2, so it's similar to Be, Mg, Sr, Ba and Ra. Most similar would be Mg or Sr, which are right above and below. all group 2 atoms share a similar electron configuration
The chemical properties of atoms are significantly changed when they form compounds. When elements combine to form compounds it is called a chemical reaction. The compound is then a collection of molecules and each molecule has in it atoms from the elements used in the formation. The atoms in the molecule are still the same atoms as one started with, but the arrangement of the electrons in the atoms has changed. It is the electronic properties of atoms and molecules that really determine the properties they have and which chemical reactions occur and which do not. The chemical properties of an atom or molecule are determined by the arrangement of the electrons of that atom or molecule. Once atoms have gone through a chemical reaction, the electronic structure is changed. The atoms are the same identity, but the properties of the atoms have been changed by the chemical reaction.
The same number you started with. In every chemical reaction the total number of atoms at the start is the same as the number of atoms at the end.
same number of each element