Answer:
B. People live longer than they used to
Explanation:
None of the other answers are correct.
Answer:
V = 27.1 cm³
Explanation:
To get the volume from the density we can plug our values into the formula for density, mass over volume, and then we use algebra to get V.
13.9 g/cm³ = 377 g / V
(13.9)(V) = 377
V = 27.1 cm³
The correct answer according to rutherford's model of atom include,
1. The atom's positive charge is located in the atoms nucleus.
2. Electrons orbit which are around the center of an atom.
3. Atom is mostly empty space.
2 valence electrons
Explanation:
Most transition metals have 2 valence electrons. Valence electrons are the sum total of all the electrons in the highest energy level (principal quantum number n). Most transition metals have an electron configuration that is ns2(n−1)d , so those ns2 electrons are the valence electrons.
Answer: C. The university surveys 600 randomly selected students who attend the university. Correct
Explanation:
