Top answers

An isotope of Nitrogen has an atomic number of 7 and a mass number of 15. How many electrons, neutrons, and protons does an atom of this isotope have?

Atomic number = the number of protons per atom of this isotopeMass number = total number of protons + neutrons per atom Therefore, an atom of this isotope has 7 protons and 15-7=8 neutrons. As an atom is neu...
SI
Answered by Sophie I. • Chemistry tutor
11354 Views

v^2 = 2w - x^2. w = 40; x = 4. Find the value of v.

Firstly, we can put the values given in the question into our equation.v 2 = 2w - x 2 Goes to ...v 2 = 2(40) - (4) 2 After we do the multiplication and indices, the equation looks like this.v 2 = 80 - 16Do t...
JT
Answered by Jack T. • Maths tutor
3143 Views

Describe the structure and bonding in Graphite?

Arranged in different hexagonal layers, strong covalent bonds exist between carbon atoms, requiring lots of energy input in order to break. However, only weak inter-molecular forces exist between the differe...
RE
Answered by Rawan E. • Chemistry tutor
5311 Views

Discuss the formation of metamorphic rocks, including foliation development

Metamorphic rocks form when a rock of any classification (igneous, meta, or sed) is subjected to heat and/or pressure , resulting in recrystallisation. Contact metamorphism occurs around a crustal intrusion ...
AM
Answered by Amy M. • Geology tutor
1743 Views

What are some techniques I can employ within the exam setting, to answer English Language close reading questions?

Some personal tips I would give to a student during this setting, revolve around 1, good time management, and 2, having three different coloured highlighters, or pens. In terms of time management, I would al...
MG
Answered by Miranda G. • English tutor
2869 Views