What is the name of the element that is in group 3A and period 6? What is the name of the element that is in group 6A and period 2? What is the name of the element that is in group 6B and period 4? What is the name of the element that is in group 1A and period 2?

An atom has a diameter of 1.50 Å and the nucleus of that atom has a diameter of 3.00×10−5 Å. Determine the fraction of the volume of the atom that is taken up by the nucleus. Assume the atom and the nucleus are a sphere   Part 2: Calculate the density of a proton, given that the mass of a proton is 1.0073 amu and the diameter of a proton is 1.73×10−15 m

1A 8A 3A 4A 5A 6A 7A He BCN 1B 2B Al Si P H2A Li Be Na Mg 3B 4B 5B 6B 7B8B K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Rf Ha ** OF Ne S Cl Ar Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr (1) What is the name of the element with a valence electron configuration of 3s¹? (2) What is the name of the element with a valence electron configuration of 2s²2p6?

Which of the following elements is NOT a metal? A) arsenic B) indium C) iridium D) lithium E) lutetium

The radius of a tantalum atom is 142 pm. How many tantalum atoms would have to be laid side by side to span a distance of 1.87 mm? atoms

What is the chemical formula for the compound formed between iron(II) and chlorine? chemical formula: What is the chemical formula for the compound formed between iron(II) and selenium? chemical formula: MAR 29 图 MacBook Air 80 DII DD F3 F4 F6 F7 F8 F9 F10 # $ & 3 4 7 8 R Y U O P { F H J K C V M V * 00

esc = O MEASUREMENT AND MATTER Organization of the Periodic Table Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. An element in Period 4 and Group 1A. A nonmetal in Group 7A. An alkaline earth metal with a lower atomic number than tin. L 1 description A main-group element in Period 2. Explanation Ö F1 Q 2 W Check # 3 20 F3 E Does any element with ZS 92 match the description? Yes O Yes O Yes O Yes $ 4 F4 O No O No O No O No R % 5 If you checked yes, give the symbol of an element with Z ≤ 92 that matches. X F5 T 0 0 MacBook Air ^ Ś 6 F6 Y & 7 F7 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility * 8 FB 9 19 0 1/5 P -

Read each description in the first column of the table below. If any chemical element with atomic number of S enter the chemical symbol of an element that matches. Otherwise check No in the second column. description An element in Period 2 and Group 4A. A metalloid in Group SA. An element in the nitrogen family with a lower atomic number than iodine. A main-group element in Period 5. Does any element with Zs 92 match the description? O Yes Yes O Yes O Yes O No O No O No O No If you checked yes, give the symbol of an element with Zs 92 that matches. 0 0

Read each description in the first column of the table below. If any chemical element with atomic number of 92 or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column. description An element in Period 2 and Group 5A. A nonmetal in Group 7A. An alkaline earth metal with a lower atomic number than rubidium. A transition element in Period 6. Does any element with Z≤ 92 match the description? Yes Yes Yes Yes No No No No If you checked yes, give the symbol of an element with Z ≤ 92 that matches. 0 X 0 0 5

1A 8А H 2A 3A 4A SA 6A 7A He NOF Ne Li Be BC 88 — 1в 2в AI Si P| S CI Ar Na Mg зв 4B S8 6B 7B K Ca Sc Ti v Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te Xe Cs Ba La Hf Ta Re Os Ir Pt Au Hg TI Pb Bi Po At Rn Fr Ra Ac Rf Ha Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Amonatomic ion with a charge of-l has an electronic configuration of ls22s2p6. This ion is a(n) What is the chemical symbol of the noble gas this ion is isoelectronic with? What is the formula of the ion?