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number of valence electron
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Which pair of elements is more likely to form ionic compounds?
Group 1 or group 2 elements with group 16 or group 17 elements. In general, if the electronegativity difference between the two atoms is more than 1.7 in Pauling's scale, then the two atoms form ionic bond.
What are the three main points to John Daltons atomic theory?
1) elements are composed of atoms 2) atoms of same elements = 3) atoms of different elements not = 4) atoms fomr compounds in definite ratios H2O
What does group 16 on the periodic table of elements have the same number of?
Group 16 elements have same number of valence electrons i.e. 6 . It has charge of 2-.
What group in the periodic table has two valence electrons in their atoms?
The alkaline earth group has two valence electrons.
Do the elements ba and ca belong to the same period or the same group on the periodic table?
Ba ad Ca belongs to same group. The group number is 2.
How are the atoms of the elements in group 2 the same?
They share the same number of electrons (=2) in the valence shell: they have the same oxidation state of +2
All of the atoms of the elements in period 2 have the sme number of?
Atoms of elements in group (column 2 of the periodic table) have 2 electrons in their outer shell. They have a low electronegativity, which means the electrons are not strongly attracted to the protons in the nucleus when compared to the electrons in atoms of column 6 or 7. For this reason, group 2 elements easily form +2 ion when in the presence of group 6 or7 elements.
Which atoms have the same valence as helium?
Helium has 2 valence electrons. Group 2 elements (alkaline earth metals) also have 2 valence electrons.
Which pair of elements is more likely to form ionic compounds?
Group 1 or group 2 elements with group 16 or group 17 elements. In general, if the electronegativity difference between the two atoms is more than 1.7 in Pauling's scale, then the two atoms form ionic bond.
What are the three main points to John Daltons atomic theory?
1) elements are composed of atoms 2) atoms of same elements = 3) atoms of different elements not = 4) atoms fomr compounds in definite ratios H2O
What has 2 elements and 3 atoms?
a molecule with 3 atoms and 2 elements
What is the term for a group of atoms?
If the group of atoms are all the same, it is called a molecule. If the group of atoms are different, it is called a compound, assuming they are bonded in some way. Otherwise, it is just called a group of atoms.
Which group of elements lose 2 valence electrons when their atoms form ionic Bond?
Group 2
Why do elements in group 2 have the same properties?
All these elements have two valence electrons.
What does group 16 on the periodic table of elements have the same number of?
Group 16 elements have same number of valence electrons i.e. 6 . It has charge of 2-.
What group in the periodic table has two valence electrons in their atoms?
The alkaline earth group has two valence electrons.
What isn't the same of elements of group 2?
There are a lot of things that aren't the same of elements in group 2. Probably the main thing is that they all have a different outermost energy level (different atomic radii).
