• Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass

The value of m is and the value of b is . Further Explanation: The property is a unique feature of the substance that differentiates it from the other substances. It is classified into two types: 1. Intensive properties: These are the properties that depend on the nature of the substance. These don’t depend on

• From your knowledge about the distribution of electrons in the levels and from the atomic number (in parentheses), indicate the most likely charge on the ion when this atom forms an ion. (Remember the 2, 8, 18 level distribution.) Answer Choices: 0 -1 +1 -2 +2

The equation that shows  acts as the acid is Further Explanation: Acids and bases can be defined in many ways based on different theories, which are as follows: 1. Arrhenius theory: According to this theory, acid is defined as the one which produces hydrogen or hydronium ions in a solution, while the base is defined

• An atom has a mass number of 32 and 17 neutrons. What is the atomic number of this atom?

The final temperature of the calorimeter is 85.71 degree C. Heat of the reaction is -1235 kJ/mol Heat discharged at the time of reaction is 1235 kJ/mol The moles of ethanol are calculated by using the formula mass of ethanol / molar mass of ethanol = 12.8 g / 46 g/mol = 0.278 moles Thus,

• What is the definition of atomic group

Answer: Option (c) is the correct answer. Explanation: Atomic number means the number of protons present in an element. Whereas atomic mass means the sum of total number of protons and neutrons present in an element. Also, it is known that when an atom is neutral then its number of protons equal number of electrons.