UWorld Missed Question (Gen and Orgo Chem)

Which have larger radii in the same period: cations or anions?

anions

Which tend to be more reactive: atoms higher up in a group or farther down in a group

farther down

small atoms like oxygen and fluorine face greater electron ______ than other atoms

repulsion

Where are electrons removed from first: the s oribtal or the the d orbial

s orbital

the shorter the wavelength, the more/less energy it has

more

What is the right answer

B

what is the right answer? Note: cldnk is 915 base pairs long. The pSKII plasmid is 2958 BP long

3841

D

One reason that mRNA is only a small fraction of a eukaryotic cell’s total RNA is presumably because

ribosomal RNA, as a transictiiptional product required for tranlsation, is coded for by reptitive DNA squences.

eukaryotes produce ___S ribosomes, made from a ___S ribisome subunit and a __S ribosome subunit

80, 60, 40

If unpaired electrons remain in orbitals, the atom is paramagnetic/diamagnetic

paramagnetic

If unpaired electrons DO NOT remain, the atom is paramagnetic/diamagnetic

diamagnetic

What type of decay is this?

alpha

What type of decay is this?

beta negative

Why does reactivity decrease down a group?

it is easier to remove valence electrons

B

Wha happens during beta positive decay

atomic number goes down by 1

What happens during gamma decay

atomic number and mass number do not change

What happens during electron capture

atomic number goes down by 1

What is the answer

A

What is a special reaction where oxiation and reduction happen on the same element

disproportionation reaction