Which of the following is not true about lithium? Only one correct answerA.It is an alkali metalB.It can be cut with a knifeC.It has high melting point D.It has low density

Explain why sodium is more reactive than Lithium

Which of the following statements is/are true?(a) Mercury exists as solid at room temperature(b) Metals like gallium and caesium have very high melting points(c) Iodine is a lustrous non-metal(d) Lithium and potassium have low densities and low melting pointsOnly one correct answerA.Only (b)B.Only (b) and (c)C.Only (c) and (d)D.(a), (b) and (c)

Which one of the following explains why lithium is less reactive than sodium?• The outer electron in sodium is closer to the nucleus and is shielded by fewer inner shells of electrons.• This means there is a stronger attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it harder for sodium to lose its outer electron compared to lithium.• The outer electron in lithium is closer to the nucleus and is shielded by fewer inner shells of electrons.• This means there is a stronger attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it harder for lithium to lose its outer electron compared to sodium.• The outer electron in lithium is further away from the nucleus and is shielded by more inner shells of electrons.• This means there is a weaker attraction between the positively charged nucleus and the negatively charged outer electron.• This makes it easier for lithium to lose its outer electron compared to sodium.I DON'T KNOWSUBMIT ANSWER

State True/False: Lithium cells are primary cells in which lithium acts as cathode and the anode may differ.a)Falseb)True

Lithium fluoride is a compound with the chemical formula LiF. It's a solid made up of repeating Li+ and F– ions.Determine which statements are true.The Li and F ions attract each otherThe Li and F ions repel each otherA Li ion has one more electron than a neutral Li atomA Li ion has one less electron than a neutral Li atom