Answer:
its a and b for this anwser
Answer:
Have different numbers of neutrons
Explanation:
Isotopes of an element have different atomic numbers because thy differ in neutron number even though proton number remains the same across the isotopes. The mass number is the summation of the proton and neutron number. Phosphorus has approximately 23 isotopes whose mass number range between 25 and 47. Only ³¹P is stable.
Mmmmmm mercury sexiest planet thanks for the pic
Raynaud's phenomenon.
Scleroderma is a group of autoimmune diseases that may affect different parts of the body with special intensity in the skin. Some of the affected structures may be blood vessels. Because of this, when exposed to cold, vasoconstriction occurs and the Raynaud's phenomenon is manifested in the extremities of the body.
The answer is A) less than 2.9
