Which of the following elements possesses the fewest valence electrons? bismuth boron barium bromine

How does an atom become a positively charged ion?

What type of bond is neon?

Identify which compound is an alkane: ch2o, c6h14, or c3h4. Explain your reasoning.

We are given that when θ = 38.7°, the angle of refraction in the liquid is θ = 26.3°. Thus, from Snell's law, the index of refraction of the liquid is

A model of the solar system with the Sun at the center is said to be heliocentric. true or false

Heat is defined as the ...

The liquid substances mercury (density = 13.6 g/ml), water (1.00 g/ml), and cyclohexane (0.778 g/ml) do not form a solution when mixed, but separate in distinct layers. list how the liquids would position themselves in a test tube.

What element is used to make expensive forks spoons and tableware?

What is the mass number of an atom of 5 protons and 7 nuetrons

Okay so I'm trying to understand something for my CER. I did a lab on objects that have an equal mass but volume and density vary. Now I need to defend why the volume increased and the density decreased.