Americium – 242 is a beta emitter. Write an equation for this nuclear reaction and identify the product nucleus.

Explanation:

²⁴²₉₅Am  ⇒  ₉₆²⁴²Cm + ₋ ₁e .

The product nucleus is Curium .

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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