# Scalar , vector and type of vector

According to John Dalton, in 1803, the atom principle was interpreted, according to which atom is indivisible but according to modern discoveries, it is known that the atom is divisible and is composed of several small atoms.

### Components of atom

1 is the fundamental particle of electronic proton and neutron atom
2 A central nucleus is present in the atmosphere, which is surrounded by debt-entrained electronic

### Electron

1 This is the underlying root cause of the atom, which Thomas had invented. 2 move around the nucleus, it's mass $-9.1\times10&space;^{-23}$ kg
3 Therefore, the mass of the electron is considered to be almost zero, on this, there is an entity loan charge i.e. its interest is  $-1.6\times10&space;^{-19}$
4 Who is its protogenic positron

### Protan

1 was discovered by Gold Goldstein
2 This positive is charged
3 Its charge is   $-1.6\times10&space;^{-19}$   slave and mass is $-1.673\times10&space;^{-27}$ kg
4 It is present in the nucleus, its mass is 1836 times the mass of the electron
The relative mass of the proton
5 is approximately equal to the hydrogen atom mass and the unit is the charge of the charge.

### Neutron

2 Its charge is zero and mass $-1.674\times10&space;^{-27}$ kg or 1.00872u