Elements of Life - Atomic Structure ETC

Question 1

What is the definition for relative isotopic mass?

Answer 1

Mass of an atom of an isotope of an element relative to 1/12th a carbon-12 atom.

Question 2

What is the definition for relative atomic mass?

Answer 2

Average mass of an atom of an element compared to 1/12th the mass of a carbon-12 atom

Question 3

Equation for Bohr’s Theory??

Answer 3

E = hv
Energy of proton = Planck constant x freq

Question 4

What is a nuclear fission reaction?

Answer 4

A reaction in which the nucleus of an atom splits into two or more smaller nuclei

Question 5

What do isotopes of an element have different numbers of?

Answer 5

Neutrons

Question 6

What is a dative covalent bond?

Answer 6

When both electrons come from the same atom

Question 7

Covalent bonding results from the strong electrostatic attractions between what?

Answer 7

The bonding pairs of electrons and nuclei

Question 8

Name of the term used to describe repeating patterns in the periodic table is what?

Answer 8

Periodicity

Question 9

What is meant by an orbital?

Answer 9

A region around a nucleus in an atom that may contain electrons.

Question 10

What is the maximum number of electrons that can be found in the 1st, 2nd, 3rd and 4th shell?

Answer 10

1st: 2 electrons
2nd: 8 electrons
3rd: 18 electrons
4th: 32 electrons