In subatomic particles what changes and what remains the same in isotopes

Which of the following statements is true? A) non metals generally have higher ionization energies than metals B) the first ionization energy is always higher than the second C) the alkali metals have the highest ionization energies of all elements

Why might a rubber raft burst if it is left in the sun on a summer day?

Which type of reaction creates more energy nuclear or chemical

Does all matter has mass and takes up space?

How are position time and motion related

What are explosives made up of

For the equilibrium reaction 2NH3 (g) + 22 kJ ↔ N2 (g) + 3H2 (g), which of the following changes would result in the formation of more N2 and H2 at equilibrium?

When a chemical reaction occurs, atoms rearrange to form new compounds, but no new atoms are created nor are any destroyed. this concept is called conservation of mass.

The elements on the Periodic Table are arranged in order of increasing (1) atomic mass (2) atomic number (3) first ionization energy (4) selected oxidation state

How many atoms in 6.2 moles of aluminum