The atomic number of sodium (Na) is 11. Which of the following is the correct electron configuration for this neutral atom?

Question 1 options:

1s22s22p63s1

1s22s22p6

1s12s12p63s3

1s22s23s24s2

Which electrons in an atom make chemical bonds? why?

Is the bond type of PCl3 polar or nonpolar? And is its molecular polarity polar or nonpolar?.

We're doing a lab in chemistry and we have to inflate a ziplock bag. So we need to find the volume of a ziplock bag and i have no idea how and no one in my group knows either. Where do I even start with this?

How can you determine the number of valence electrons in an atom of a representative element?

The mass of a quantity of NiCl2 is 24.6 g. How many formula units are in the sample? A. 1.1 3 1023 NiCl2 formula units B. 1.9 3 1027 NiCl2 formula units C. 3.2 3 1023 NiCl2 formula units D. 5.3 3 10-21 NiCl2 formula units

Which is a waste product of aerobic respiration? A. water B. energy C. oxygen D. glucose

Match the following: Part A 1. matter with no definite shape or volume 2. matter with no definite shape but with definite volume 3. the process of a solid changing directly to a gas without forming a liquid 4.

What is the mass in grams of 390 mL

Around 1910, Rutherford bombarded gold foil with alpha particles. Most of the alpha particles passed straight through. To his surprise, a smaller number were deflected by 180°. This summary recounts the scientific discovery of A.

What is the density? Mass = 120 g Volume = 96 mL