Answer:
Group 2A (or IIA) of the periodic table are the alkaline earth metals: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They are harder and less reactive than the alkali metals of Group 1A.
Explanation:
Q = mcΔT = (4.00 g)(0.129 J/g•°C)(40.85 °C - 0.85 °C)
Q = 20.6 J of energy was involved (more specifically, 20.6 J of heat energy was absorbed from the surroundings by the sample of solid gold).
1 is chemical energy cause thats what gas and electric stoves are
2 is convection
3 is c
The particles bunch together and can no longer move
Answer:
I feel as though you are missing information to this question.
Explanation:
elements on the periodic table, today, are arranged based on physical properties, such as valence electrons, atomic mass, etc.
