26. Which statements would be expected to be true for Organesson (Og)? Select all that apply. A It is relatively unreactive.

B. It has a high electron affinity.

C. It has a full valence shell of electrons.

D. It has the largest atomic radius of the four new elements.

E. It has the lowest effective nuclear charge of the four new elements.

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.