The modern atomic model includes electrons orbiting the nucleus. which of the following parts of dalton's atomic model was disproved by the discovery of the neutron?
a. atoms are tiny particles
b. atoms cannot be divided into smaller parts
c. atoms have specific mass and size
d. atoms have specific chemical properties

option C.

Explanation:

here are some of the ways in which chemical and nuclear reactions differ.

explanation:

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.