An element that has the same chemical properties as other atoms of that element, but that has a different number of neutrons is a(n):
a. isotope
c. substance
b. compound
d. covalent element

How has the immigration of the 1990s affected the social and economic life of the united states?

1.3.3 quiz: primary and secondary sourcesquestion 4 of 102 pointsa secondary source is reliable and credible if the person who created thesource is an expert on the topic, is educated and respected in the field ofstudy, and:

Linda, mike, and carol all call their group leader by her first name, juanita. a fifth group member, leslie, calls her ʺms. garcia.ʺ leslie has not accepted: