Question

question 10 in ionic bonding, electrons are transferred from one atom to another. question 11 an atom has 42 protons, 42 e... trons. the mass of the atom is blank 1 amu. (options: combined, transferred, excluded, shared for both questions)

Explanation:

Question 10 (Ionic Bonding)

In ionic bonding, electrons are transferred from one atom (usually a metal) to another (usually a non - metal) to form ions, which then attract each other. The option "transferred" matches this concept.

Step 1: Recall the formula for atomic mass

The mass of an atom (in atomic mass units, amu) is approximately equal to the sum of the number of protons and the number of neutrons. We know the number of protons is 42, but we need to find the number of neutrons? Wait, wait, maybe there is a typo in the question. Wait, the original question says "An atom has 42 protons, 42 e... trons. The mass of the atom is \_\_\_ amu." Wait, maybe the number of neutrons is also 42? Wait, no, maybe the question is that the atom has 42 protons and 42 neutrons? Wait, let's assume that the number of neutrons is also 42 (maybe a typo in the electron part, maybe it's 42 neutrons). Then atomic mass = number of protons + number of neutrons.

Step 2: Calculate atomic mass

Number of protons = 42, assume number of neutrons = 42 (since the question might have a typo, maybe the "42 e" is a typo and should be "42 n" for neutrons). Then atomic mass $= 42 + 42 = 84$ amu.

Answer:

transferred (the option with the text "transferred")

Question 11 (Atomic Mass Calculation)