SCHEDULE CHANGE. A planned change or a flight number/time change which can occur up to more than 72 hours prior to the flight's scheduled. departure. Examples - Change of flight times, change of flight numbers, reduction of service, discontinuation of all service. in a market. American uses an automated schedule change process up to 72 hours prior to departure. Through this automated. process all schedule changes are sent to the booking source for notification.
Describe the particles that make up the nucleus of an atom in terms of mass and charge. Protons, neutrons and electrons. Protons have a relative mass of 1 and a charge of +1, they are found in the nucleus of an atom.
(Answer #2). The atom is made up of three major particles. Protons and neutrons which make up the nucleus and electrons which surround the nucleus. It is the number of protons, or the atomic number, the one that makes an element what it is.If you change the number of protons, you no longer have that element. The other nuclear particle is the neutron.The mass number is a sum of the number of protons, or atomic number, and the number of neutrons.Answer #2). The atom is made up of three major particles. Protons and neutrons which make up the nucleus and electrons which surround the nucleus. It is the number of protons, or the atomic number, the one that makes an element what it is.