explain why some metals are found to occur freely in nature while other occur only as compound with example of each types of metals

Atoms whose outermost energy level is not filled may gain or lose valence electrons. What do you call these atoms?

If she eats 0.70oz of protein how many grams of protein has she eaten

Which metalloid has 3 electrons in its 5p orbitals

How do astronomers explain the formation of the milky way galaxy

To begin the experiment, 1.5g of methane CH4 is burned in a bomb calorimeter containing 1,000 grams of water. The initial temperature of water is 25°C. The specific heat of water is 4.184 J/g°C. The heat capacity of the calorimeter is 695 J/°C.

How many protons does one atom of sulfur have

Which shows the electron configuration for zinc (Zn) ? [Kr]5s24d10 [Kr]5s24d6 [Ar]4s23d9 [Ar]4s23d10

What is the oxidation number of chromium in the ionic compound ammonium dichromate (nh4) 2cr2o7?

Draw an ecosystem with 10 biotic and 5 abiotic factor

Which organism is responsible for cleanup in this ecosystem? coyote vulture prairie dog grasshopper or prairie grass