Which statement correctly describes part of the atomic model?

a. atoms are made only of protons and electrons.

b. the nucleus is made of protons and electrons.

c. protons are outside the nucleus.

d. electrons are outside the nucleus

When ions come together to form a crystal, energy is released? A. Ionic energy B. Latrice energy C. ionization energy D. deactivation energy

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

How many neutrons are in Cesium-130 (Cs) ? 55 75 130 185

What are the two types of dichotomous keys. Which is easier to use?

For a solar eclipse to occur which of the following alignments is necessary? A. The moon is located along a straight line between the sun and earth B. the is located along a straight line between the sun and moon C.

The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change that must happen at the molecular level? A. The molecules move more quickly and their average kinetic energy increases. B.

The most important reason why solid sodium hydroxide is not used as a primary standard is

plate a and plate b are both continental plates. what is ghe most likely result if the two plates collide?

According to the second law of thermodynamics, the entropy of any system always increases. According to the second law of thermodynamics, the entropy of any system always increases. True False

If the density of Cu is 8.96g/cm cubed, what is the volume of 28kg of Cu?