D. yes - non metals are elements and elements are pure substances
Answer:
B) CsCl
Explanation:
The ionic character is formed between two kinds of atoms having a large electronegativity differences e.g metals (like those in groups IA and IIA) and nonmetals (like those in groups VIA and VIIA). The formation of an ionic character involves a transfer of electrons from the less electronegative atom(metal) to the more electronegative atom (non-metal) such that the two kinds of atoms now have completely filled outer shell like the noble gases.
In CsCl, electrons are being transferred from Cs⁺ to Cl⁻ . As a result of this transfer , the atom of the metal becomes positively charged (cation) while that of the non-metal becomes negatively charged (anion).
The highest percentage of ionic character will occur as a result of smaller negatively charged (anion) and larger positively charged (cation). From the options given, CsCl have the highest percentage of ionic character.
Answer:
Many insects are resistant to pesticides there are many factors that can lead to resistance in the organism.
In the population of mosquitoes some of them carry resistant gene that makes the organism survive even in the presence of pesticide.
This occurs because of mutation that is very rare when it comes to insects. This is the reason that after sometime the mosquito become resistant to pesticides. They are more likely to breed and survive.
The orbital number indicates the energy lvl
1. does preparing food in different ways affect the calories and percents of certain things
2. prepare 3 foods in different types of ways(bake, fry, grill, microwave, boil, etc.)