Alpha particles used in the Gold foil experiments are Helium atoms that__? 1. Have no charge
2.have no negative particle
3.has lost all its neutrons
4.have no positive charges
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Which term refers to the total dollar value of the goods and services produced in a country in a year?

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.