What is the reason for the trend in Ionization energy going across a period? answer choices answer choice 1: increasing number of protons in the nucleus Answer choice 2: increasing energy level protons are in Answer choice 3: increasing number of electrons in the cloud Answer Choice 4: increasing energy level electrons are in

Need help with the following chart:   Element protons electrons neutrons Bohr electron configuration MOT electron configuration Carbon           Phosphorus           Sodium           Calcium           Neon           Oxygen

If calcium lost two electrons it would have the same number of electrons as O Barrium O Argon O Berylium O Titanium

Enter the number of electrons in each energy level (shell) for each of the elements. If the energy level does not contain any electrons, enter a 0. It may help to refer to the periodic table. He n = 1 ______ n = 2 ______ n = 3______ n = 4______ F  n = 1 _____ n = 2_____ n = 3 _____ n = 4______ P n = 1______ n = 2______ n = 3______ n = 4______ K n = 1_____ n = 2______ n = 3______ n = 4______ What is the neutral atom that has its first two energy levels filled, has 5 electrons in its third energy level, and has no other electrons? Enter the name of the element, not the abbreviation. Element name ________

The ground state configuration for an element is 1 s 22 s 22 p 63 s 23 p 1. What is the atomic number of the element?   a. 24   b. 9   c. 11   d. 13

What is effective nuclear charge?   the net charge of the electrons in the outermost levels the average or net charge from the nucleus experienced by the electrons in the outermost levels the net charge of nucleus and all electrons the average or net charge from the nucleus experienced by the inner electrons

Which of the following statements are true concerning the core charge of carbon-12, carbon-13, and carbon-14. a. The core charge would change because the number of neutrons are changed in these isotopes of carbon b. The core charge would remain the same since the number of protons changed with the number of electrons c. The core charge would be 12, 13, and 14 respectively for these isotopes of carbon d. The core charge can never change for any element, since the number of protons and number of core electrons are constant for any element