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what does atomic number describe?

a. mass

b. number of neutrons

c. number of protons

d. atomic weight
what is the number of protons plus the number of neutrons in the nucleus of an atom equivalent to?

a. atomic charge

b. mass number

c. atomic number
d. average atomic mass

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.