Answer:
(a) Eka-aluminum and gallium are two names of the same element as Eka-Aluminium has almost exactly the same properties as the actual properties of the gallium element. The properties: atomic mass, density, melting point, formula of chloride and formula of oxide are almost the same.
Explanation:
Scandium - Eka boron.
(ii) Gallium - Eka aluminium.
(iii) Germanium - Eka silicon.
Answer:
Experience in star is very nice
Explanation:
Because i love stars
Answer: 2.408×10^24 atoms
Explanation:
Applying the formula
No. moles= (no. Of atoms)/Avogadro's number
4 = n/6.02×10^23
no. of atoms= 2.408×10^24 atoms
Answer: hydrogen
All acids have the hydrogen ion in common
Explanation:
According to Arrhenius theory, an acid is a substance which dissociate in water to produce hydrogen ions, H+;
For example: HCl --> H+ + Cl-
while a base is a substance which gives hydroxide ions, OH-, in water
For example: NaOH(s) --> Na+(aq) + OH-(aq)
Thus, all acids have the hydrogen ion in common
B. Electrons because
A - Protons always remain constant. They decay over a LONG period of time and don't do anything.
B - it is correct because they do all the bonding.
C - It's not a subatomic particle
D - Neutrons are not involved in bonding as well.