Question

1)If the number of protons is 10, what is the The proton and electron are measured in 2) number of atomic mass and atomic number? 3) Aluminium + Oxygen - Aluminium oxide, translate and balance> 4) Calcium belongs to ___ group of periodic table. 5) Sodium belongs to ___ group of periodic table. please answer this questions immediately, i will make you brainliest for sure if you answer all

Answer 1

Answer:

If it a neutral species or atom then no. of proton (p) = no. of neutron (n)

So p = 10. n = 10

Atomic mass = p + n

Atomic no. = p

Answer 2

Answer:

1) No. proton and electron are determined by atomic number.

2)The number of atomic mass---> It is the mass of an atom.

The atomic number----> It the no.of proton (the postive charge) presence in the nucleus.

3) The balance equation:-

4Al + 3O2---->2Al2O3

4) Group 2 (alkaline).

5)Group 1 (alkali).

Explanation:

Because an atoms of an element is electrically neutral and we know that the nucleus of an atoms of an element have two type of charges postive and negative, as a atom of an element is electrically neutral therefore,

No. of proton = No. of electron.

As we know that,

Atomic number = No. of proton

therefore, No. of proton = No. of electron.