Cho các nguyên tử có kí hiệu sau: 11 23 ; 17 35
a) Xác định số khối, số proton, số nơtron, số e của nguyên tử các nguyên tố trên
b) Viết cấu hình e nguyên tử, xác định số electron ở mỗi lớp, là kim loại , phi kim hay khí
hiếm

yes it is balanced

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.