Circle ALL the corresponding numbers to terms that apply to each element: [1] metal; [2] nonmetal; [3] metalloid; [4] alkali metal; [5] alkaline earth metal; [6] halogen; [7] noble gas; [8] main group element; [9] transition element; [10] inner transition element.

Fill in the table. Element Number of Protons Number of Neutrons Number of Electrons Mass Number Charge     120   199 +2 Silicon   15     -1

3. Which statement accurately describes the atoms of a specific element? A zinc, Zn, atom contains 30 protons inside the nucleus and 30 electrons outside the nucleus. An indium, In, atom contains 115 protons inside the nucleus and 49 neutrons outside the nucleus. A scandium, Sc, atom contains 45 electrons outside the nucleus and 21 neutrons inside the nucleus. An aluminum, Al, atom contains 27 electrons and 27 protons inside the nucleus. CLEAR ALL

Name of Number of Number of electrons Number of SYMBOL A Charge element protons Neutrons zinc 30 34 17 -1 nitrogen 14 10 20

1.)An atom of sodium contains 11 electrons, 11 protons, and 12 neutrons. What is the atomic number of sodium?   2.)Many plants are able to move their flowers, tracking the sun across the sky throughout the day.  Which property of life does this illustrate?   3.)Your adorable 5-pound puppy eventually becomes a 70-lb black lab that still wants to sit on your lap.  Which property of life does this illustrate?   4.)Which of the following is not a fundamental property of living organisms?

Enter your answer in the provided box. Calculate the atomic weight of the element given the mass and natural occurrence of each isotope. (Round to four significant figures.)    Argon  Mass (amu) Isotopic Abundance    Argon−36 35.97 0.34%   Argon−38 37.96 0.06%   Argon−40 39.96 99.60% ___Amu

Complete the following table by filling in the missing information in each blank. Please only type in numbers Element Symbol Protons Neutrons Electrons Mass Number Mg 12 25 Xe 78 Fe3+ 30 BiS+ 83 209 68 68 167 (type in correct symbol for this one) Tch 米 f8 f12 10 fg 144 fo

A neutral isotope has a mass number of 6565 and 3636 neutrons. Identify the element symbol of this isotope and determine the number of protons and electrons. element symbol:   number of protons:     number of electrons:     A neutral isotope has 4949 neutrons and 3636 electrons. Identify the element symbol of this isotope and determine the mass number and number of protons. element symbol:   mass number:     number of protons:

3 Complete the following table for the elements that are listed. If you have a full display of elements, check to see if your predictions are correct. Element Metal/Metalloid/ Prediction: Shiny/Dull Correct? Yes/No Nonmetal Chromium Shiny Yes Gold M Shiny Yes Lead M Shiny Yes Cadmium M Shiny Yes Silicon ML Shiny Yes C. The Atom Symbol of Element Name of Atomic Mass Protons Neutrons Electrons Element Number Number Iron 30 Aluminum 14 Potassium 20 Bromine 45 Gold 118

en 11 of 14 Classify each statement about subatomic particles as true or false. True False Answer Bank Protons and electrons are contained in the central core of the atom called the nucleus. Electrons and neutrons have charges of the same magnitude but opposite signs. Protons are attracted to electrons. If an atom has more electrons than protons, it will be negatively charged. 1:5 コG x 司 d 9/8 63°F ^ 一国-