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Explain why the ionisation energies tend to increase across a period

As you go across a period, the next atom will have 1 more proton in its nucleus than the one before. Therefore, the nucleus of each atom will have an increasingly positive charge, meaning a stronger nucle...

Answered by Megan S. • Chemistry tutor

2426 Views

Describe the process of eukaryotic DNA replication

DNA helicase unzips and unwinds the DNA double helix by breaking hydrogen bonds between complementary base pairs. This exposes the bases on two strands creating template strands. Free floating nucleotides...

Answered by Louis B. • Biology tutor

11301 Views

What is the value of x from (x+2)^2=4

(x+2)^2=4=>x+2=2+>x=0 or x+2=-2=>x=-4

Answered by Alexandru B. • Further Mathematics tutor

2950 Views

An electron of mass 9.11x10^(-31) is fired from an electron gun at 7x10^6 m/s. What size object will the electron need to interact with in order to diffract?

Momentum of electron=mv=6.377x10^^-24 kg m/s

λ=h/mv=6.63x10^-34/6.377x10^-24=1.039...x10^-10=1x10^-10m

Answered by Jozefina G. • Physics tutor

3397 Views

What factors affect ionisation energy and how does each of them affect it?

atomic radius: the larger the atomic radius, the smaller the attraction of the outer shell electrons to the nucleus so the ionisation energy is lower reduced as atomic radius increases. 2. nuclear c...

Answered by Harriet O. • Chemistry tutor

22845 Views