How do you find the number of electrons in a atom?

What is the most stable monatomic ion formed from caesium?

Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals that scientists describe as which of the following? A. revolutionary B. rotational C. periodical D. elliptical

Four people are needed to lift a TV set with a single fixed pulley. How many people will be needed to lift the same TV set with a 2 fixed, 2 moveable pulley system? (Ignore friction.)

Whats the answer of dependent variables and independent varies

For which molecule can the bonding be described in terms of sp3 hybrid orbitals of the central atom? A. SF6 B. BF3 C. PCl5 D. NH3

Balance the following oxidation-reduction reaction: Fe (s) + Na + (aq) →Fe2 + (aq) + Na (s) Express the coefficients as integers separated by commas (e. g., 4,1,3,2, where 1 indicates the absence of a coefficient).

What are the three sub-types of convergent plate boundaries

Which phrase describes an atom

How many moles of NH3 are in 0.250 L of a 5.00 M aqueous solution?

There are different types of bonds based on electronegativity. One bond type is known as non-polar covalent. Which choice below has this bond type? A. all of the compounds B. H2 C. H2O D. NaCl