Recap metabolism quiz

IE stands for ionisation energy, what is the correct definition?

• Ionisation energy is the energy required to remove the most loosely held electrons from one mole of gaseous atoms to produce 1 mole of liquid ions each with a charge of 1+.

• ionisation energy is the energy required to remove one mole of the most loosely held protons from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+.

• Ionisation energy is the energy required to remove one mole of the most loosely held electrons from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+.

• Ionisation energy is the energy required to remove one mole from its hole on the lawn.

Elements get ....................... in size as we move across a row left to right

• bigger

• smaller

• more negatively charged

• larger

The Ionisation energy reduces as we move down a group, chiefly because of

• The number of protons increases

• electrons are closer to the nucleus

• A decrease in the number of shells

• Electron shielding

A mol of any substance is equal to 6.02x 10^23 ....................

• Elements, ions or molecules

• chocholate bars

• Protons and neutrons

• electrons

Concentration is equal to the number of .......... divided by the ...............?

• Electrons and neutrons

• volume divided by mols

• number and particles

• mols divided by volume

The atom is the .............. ..........

• just the protons and neutrons

• Ionisation category

• smallest unit of matter

• Type of bonding that ocurrs

When an atom loses an electron it becomes a

• Cation

• Anion

• sea of electrons

• negatively charged particle

When an atom gains an electron it becomes

• an anion

• a cation

• a proton

• more postively cjarged

Ionic bonding involves the

• sharing of electrons

• sea of electrons producing positive cations

• transfer of electron shells

• transfer of electrons from one atom to another

The sharing of electrons produces

• hydrogen bonding

• ionic bonding

• covalent bonding

• metallic bonding