moniqueparker69 moniqueparker69

30-11-2014
Biology

Answered

What element has 81 protons in the nuclei of its atoms?

APlatinum
BLead
CThallium
DUranium

Verified Answer :

Shortcircuit Shortcircuit

30-11-2014

A little trick i learnt: The atomic number reflects how many electrons there are, and there must be an equal charge. therefore, there are the same amount of protons as there are electrons. so if it has 81 protons, we look for number 81 in the periodic table, Thallium

Answer Link

Related Questions

A group of 8 friends 5 girls and 3 boys plans to watch a movie but they have only 5 tickets How many different combinations of 5 friends could possibly receive

By 1914 which of the following African countries were still independent

The use of literacy tests during the postReconstruction years was primarily an attempt to drive which group out of politics IT IS A TIMED TEST women immigrants

11 Which one of the following is a correct formation reaction A Cdiamond Cgraphite B H2g Og H2Ol C Cgraphite 4Hg CH4g D 6Cgraphite 6H2Os C6H12O6s E 2Cgraphite 3

is one of the key factors in effective teams a Building trust b A good leader c Clear rules d A goal handed down from upper management

Which is more important What a person thinks or what a person does

the sum of 4 times a girls age and 7 times a boys age is 169 the boy is one year older than twice the age of the girl find out how old they will be in ten years

Rezolvati inecuatia urmatoare 8x13 supra 2 lt 2x15

How does Sir Launcelot escape from the four queens who hold him in Sir Launcelot du LakeOA Merlin uses a disguise and rescues himOB Sir Tarquine calls for his r

What are some good metaphors to describe your best friend

Web Analytics